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OpenMP: Duplicate checking for map clauses in Fortran (PR107214)
[thirdparty/gcc.git] / configure.ac
CommitLineData
beeaf216 1# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
ec8fd1c0 2# 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012,
88252529 3# 2014, 2015, 2016, 2019, 2022 Free Software Foundation, Inc.
6599da04
JM		 4#
5# This file is free software; you can redistribute it and/or modify it
6# under the terms of the GNU General Public License as published by
309c24a9 7# the Free Software Foundation; either version 3 of the License, or
6599da04
JM		 8# (at your option) any later version.
9#
10# This program is distributed in the hope that it will be useful, but
11# WITHOUT ANY WARRANTY; without even the implied warranty of
12# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13# General Public License for more details.
14#
15# You should have received a copy of the GNU General Public License
309c24a9
JJ		 16# along with this program; see the file COPYING3. If not see
17# <http://www.gnu.org/licenses/>.
6599da04
JM		 18
19##############################################################################
671aa708
NN		 20### WARNING: this file contains embedded tabs. Do not run untabify on this file.
21
7142fb32
PB		 22m4_include(config/acx.m4)
23m4_include(config/override.m4)
38d24731 24m4_include(config/proginstall.m4)
7413962d 25m4_include(config/elf.m4)
ffac9597 26m4_include(config/ax_cxx_compile_stdcxx.m4)
592c90ff
KG		 27m4_include([libtool.m4])
28m4_include([ltoptions.m4])
29m4_include([ltsugar.m4])
30m4_include([ltversion.m4])
31m4_include([lt~obsolete.m4])
33ad93b9 32m4_include([config/isl.m4])
ad6717df 33
671aa708 34AC_INIT(move-if-change)
0115d4a3 35AC_DISABLE_OPTION_CHECKING
1c710c3c 36
ad33ff57
RW		 37progname=$0
38# if PWD already has a value, it is probably wrong.
39if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi
40
41# Export original configure arguments for use by sub-configures.
42# Quote arguments with shell meta charatcers.
43TOPLEVEL_CONFIGURE_ARGUMENTS=
44set -- "$progname" "$@"
45for ac_arg
46do
47 case "$ac_arg" in
48 *" "*|*" "*|*[[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\']]*)
49 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"`
50 # if the argument is of the form -foo=baz, quote the baz part only
51 ac_arg=`echo "'$ac_arg'" | sed "s/^'\([[-a-zA-Z0-9]]*=\)/\\1'/"` ;;
52 *) ;;
53 esac
54 # Add the quoted argument to the list.
55 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS $ac_arg"
56done
57if test "$silent" = yes; then
58 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS --silent"
59fi
60# Remove the initial space we just introduced and, as these will be
61# expanded by make, quote '$'.
62TOPLEVEL_CONFIGURE_ARGUMENTS=`echo "x$TOPLEVEL_CONFIGURE_ARGUMENTS" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
63AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS)
64
1c710c3c
DJ		 65# Find the build, host, and target systems.
66ACX_NONCANONICAL_BUILD
67ACX_NONCANONICAL_HOST
68ACX_NONCANONICAL_TARGET
69
70dnl Autoconf 2.5x and later will set a default program prefix if
71dnl --target was used, even if it was the same as --host. Disable
72dnl that behavior. This must be done before AC_CANONICAL_SYSTEM
73dnl to take effect.
74test "$host_noncanonical" = "$target_noncanonical" &&
75 test "$program_prefix$program_suffix$program_transform_name" = \
76 NONENONEs,x,x, &&
77 program_transform_name=s,y,y,
78
671aa708
NN		 79AC_CANONICAL_SYSTEM
80AC_ARG_PROGRAM
81
1c710c3c 82m4_pattern_allow([^AS_FOR_TARGET$])dnl
0999159b 83m4_pattern_allow([^AS_FOR_BUILD$])dnl
1c710c3c 84
775956d0
NN		 85# Get 'install' or 'install-sh' and its variants.
86AC_PROG_INSTALL
ad6717df 87ACX_PROG_LN
148907ea 88AC_PROG_LN_S
87264276
PB		 89AC_PROG_SED
90AC_PROG_AWK
775956d0 91
fc45f3fe
DJ		 92srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}`
93
94# We pass INSTALL explicitly to sub-makes. Make sure that it is not
95# a relative path.
96if test "$INSTALL" = "${srcdir}/install-sh -c"; then
97 INSTALL="${srcpwd}/install-sh -c"
98fi
99
671aa708
NN		 100# Set srcdir to "." if that's what it is.
101# This is important for multilib support.
102pwd=`${PWDCMD-pwd}`
671aa708
NN		 103if test "${pwd}" = "${srcpwd}" ; then
104 srcdir=.
105fi
106
107topsrcdir=$srcpwd
6599da04 108
4977bab6 109extra_host_args=
afabd8e6 110
6599da04
JM		 111### To add a new directory to the tree, first choose whether it is a target
112### or a host dependent tool. Then put it into the appropriate list
4977bab6
ZW		 113### (library or tools, host or target), doing a dependency sort.
114
115# Subdirs will be configured in the order listed in build_configdirs,
116# configdirs, or target_configdirs; see the serialization section below.
117
118# Dependency sorting is only needed when *configuration* must be done in
119# a particular order. In all cases a dependency should be specified in
120# the Makefile, whether or not it's implicitly specified here.
6599da04 121
4977bab6
ZW		 122# Double entries in build_configdirs, configdirs, or target_configdirs may
123# cause circular dependencies and break everything horribly.
6599da04 124
23f6b2f9
PB		 125# these library is used by various programs built for the build
126# environment
127#
929315a9 128build_libs="build-libiberty build-libcpp"
23f6b2f9
PB		 129
130# these tools are built for the build environment
85bfb75e 131build_tools="build-texinfo build-flex build-bison build-m4 build-fixincludes"
23f6b2f9 132
6599da04 133# these libraries are used by various programs built for the host environment
eae1a5d4 134#f
3de627ff 135host_libs="intl libiberty opcodes bfd readline tcl tk itcl libgui zlib libbacktrace libcpp libcody libdecnumber gmp mpfr mpc isl libiconv libctf libsframe"
6599da04 136
6599da04
JM		 137# these tools are built for the host environment
138# Note, the powerpc-eabi build depends on sim occurring before gdb in order to
139# know that we are building the simulator.
4977bab6
ZW		 140# binutils, gas and ld appear in that order because it makes sense to run
141# "make check" in that particular order.
38e3d868 142# If --enable-gold is used, "gold" may replace "ld".
2efd8b1f 143host_tools="texinfo flex bison binutils gas ld fixincludes gcc cgen sid sim gdb gdbserver gprof etc expect dejagnu m4 utils guile fastjar gnattools libcc1 gotools c++tools"
5d4a5ee6 144
6599da04
JM		 145# these libraries are built for the target environment, and are built after
146# the host libraries and the host tools (which may be a cross compiler)
8499116a 147# Note that libiberty is not a target library.
291f172e 148target_libraries="target-libgcc \
eff02e4f 149 target-libbacktrace \
5d4a5ee6
JL		 150 target-libgloss \
151 target-newlib \
6d3b5aea 152 target-libgomp \
48310492 153 target-libatomic \
0a35513e 154 target-libitm \
cb543528 155 target-libstdc++-v3 \
f35db108 156 target-libsanitizer \
2077db1b 157 target-libvtv \
77008252 158 target-libssp \
1ec601bf 159 target-libquadmath \
6de9cd9a 160 target-libgfortran \
012447ea 161 target-libffi \
d9cdb878 162 target-libobjc \
632e2a07 163 target-libada \
b4c522fa 164 target-libgo \
bb50312e
IB		 165 target-libphobos \
166 target-zlib"
6599da04 167
4dbda6f0
NN		 168# these tools are built using the target libraries, and are intended to
169# run only in the target environment
6599da04 170#
4dbda6f0 171# note: any program that *uses* libraries that are in the "target_libraries"
1bcce263 172# list belongs in this list.
6599da04 173#
85bfb75e 174target_tools="target-rda"
6599da04
JM		 175
176################################################################################
177
6599da04
JM		 178## All tools belong in one of the four categories, and are assigned above
179## We assign ${configdirs} this way to remove all embedded newlines. This
180## is important because configure will choke if they ever get through.
181## ${configdirs} is directories we build using the host tools.
182## ${target_configdirs} is directories we build using the target tools.
6599da04 183configdirs=`echo ${host_libs} ${host_tools}`
4dbda6f0 184target_configdirs=`echo ${target_libraries} ${target_tools}`
71b5d516 185build_configdirs=`echo ${build_libs} ${build_tools}`
8b87bb96 186
ac9e6043 187m4_divert_text([PARSE_ARGS],
87841584
AM		 188[case $srcdir in
189 *" "*)
190m4_pushdef([AS_MESSAGE_LOG_FD], [])dnl
191 AC_MSG_ERROR([path to source, $srcdir, contains spaces])
192m4_popdef([AS_MESSAGE_LOG_FD])dnl
193 ;;
194esac
195ac_subdirs_all=`cd $srcdir && echo */configure | sed 's,/configure,,g'`
ac9e6043
RW		 196])
197
6599da04
JM		 198################################################################################
199
6599da04
JM		 200srcname="gnu development package"
201
202# This gets set non-empty for some net releases of packages.
203appdirs=""
204
e1848dde
NN		 205# Define is_cross_compiler to save on calls to 'test'.
206is_cross_compiler=
207if test x"${host}" = x"${target}" ; then
208 is_cross_compiler=no
209else
210 is_cross_compiler=yes
211fi
212
b4acb5ef 213# Find the build and target subdir names.
8b87bb96 214GCC_TOPLEV_SUBDIRS
0db770bd
RW		 215# Be sure to cover against remnants of an in-tree build.
216if test $srcdir != . && test -d $srcdir/host-${host_noncanonical}; then
217 AC_MSG_ERROR([building out of tree but $srcdir contains host-${host_noncanonical}.
218Use a pristine source tree when building in a separate tree])
219fi
f653f0ab 220
55380b08
NN		 221# Skipdirs are removed silently.
222skipdirs=
223# Noconfigdirs are removed loudly.
224noconfigdirs=""
6599da04 225
55380b08
NN		 226use_gnu_ld=
227# Make sure we don't let GNU ld be added if we didn't want it.
228if test x$with_gnu_ld = xno ; then
229 use_gnu_ld=no
5afab7ad 230 noconfigdirs="$noconfigdirs ld gold"
6599da04
JM		 231fi
232
55380b08
NN		 233use_gnu_as=
234# Make sure we don't let GNU as be added if we didn't want it.
235if test x$with_gnu_as = xno ; then
236 use_gnu_as=no
237 noconfigdirs="$noconfigdirs gas"
6599da04
JM		 238fi
239
d7f09764 240use_included_zlib=
a05c2c75
L		 241AC_ARG_WITH(system-zlib,
242[AS_HELP_STRING([--with-system-zlib], [use installed libz])])
d7f09764
DN		 243# Make sure we don't let ZLIB be added if we didn't want it.
244if test x$with_system_zlib = xyes ; then
245 use_included_zlib=no
246 noconfigdirs="$noconfigdirs zlib"
247fi
248
36ba9851
ДП		 249# Don't compile the bundled readline/libreadline.a if --with-system-readline
250# is provided.
251if test x$with_system_readline = xyes ; then
252 noconfigdirs="$noconfigdirs readline"
253fi
254
55380b08
NN		 255# some tools are so dependent upon X11 that if we're not building with X,
256# it's not even worth trying to configure, much less build, that tool.
6599da04 257
55380b08
NN		 258case ${with_x} in
259 yes | "") ;; # the default value for this tree is that X11 is available
423ce3eb 260 no)
b4f96efe 261 skipdirs="${skipdirs} tk itcl libgui"
423ce3eb
NN		 262 # We won't be able to build gdbtk without X.
263 enable_gdbtk=no
264 ;;
55380b08
NN		 265 *) echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
266esac
6599da04 267
1bcce263 268# Some are only suitable for cross toolchains.
95ddd785
NN		 269# Remove these if host=target.
270cross_only="target-libgloss target-newlib target-opcodes"
6599da04 271
55380b08
NN		 272case $is_cross_compiler in
273 no) skipdirs="${skipdirs} ${cross_only}" ;;
55380b08 274esac
6599da04 275
0c639b89
DD		 276# If both --with-headers and --with-libs are specified, default to
277# --without-newlib.
9082a750
MR		 278if test x"${with_headers}" != x && test x"${with_headers}" != xno \
279 && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
0c639b89
DD		 280 if test x"${with_newlib}" = x ; then
281 with_newlib=no
282 fi
283fi
284
285# Recognize --with-newlib/--without-newlib.
286case ${with_newlib} in
287 no) skipdirs="${skipdirs} target-newlib" ;;
288 yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
289esac
290
85c64bbe
BS		 291AC_ARG_ENABLE(as-accelerator-for,
292[AS_HELP_STRING([--enable-as-accelerator-for=ARG],
293 [build as offload target compiler.
4b4f2e35 294 Specify offload host triple by ARG])])
85c64bbe
BS		 295
296AC_ARG_ENABLE(offload-targets,
297[AS_HELP_STRING([--enable-offload-targets=LIST],
298 [enable offloading to devices from comma-separated LIST of
299 TARGET[=DIR]. Use optional path to find offload target compiler
300 during the build])],
301[
302 if test x"$enable_offload_targets" = x; then
303 AC_MSG_ERROR([no offload targets specified])
304 fi
305], [enable_offload_targets=])
306
fe5bfa67
TB		 307AC_ARG_ENABLE(offload-defaulted,
308[AS_HELP_STRING([--enable-offload-defaulted]
309 [If enabled, configured but not installed offload compilers and
310 libgomp plugins are silently ignored. Useful for distribution
311 compilers where those are in separate optional packages.])],
312[enable_offload_defaulted=$enableval],
313[enable_offload_defaulted=])
314
21539e2e
MK		 315# Handle --enable-gold, --enable-ld.
316# --disable-gold [--enable-ld]
317# Build only ld. Default option.
9580395f
L		 318# --enable-gold [--enable-ld]
319# Build both gold and ld. Install gold as "ld.gold", install ld
320# as "ld.bfd" and "ld".
321# --enable-gold=default [--enable-ld]
21539e2e
MK		 322# Build both gold and ld. Install gold as "ld.gold" and "ld",
323# install ld as "ld.bfd".
324# --enable-gold[=default] --disable-ld
325# Build only gold, which is then installed as both "ld.gold" and "ld".
326# --enable-gold --enable-ld=default
9580395f
L		 327# Build both gold (installed as "ld.gold") and ld (installed as "ld"
328# and ld.bfd).
21539e2e
MK		 329# In other words, ld is default
330# --enable-gold=default --enable-ld=default
331# Error.
332
333default_ld=
5afab7ad 334AC_ARG_ENABLE(gold,
33e39b66
AS		 335[AS_HELP_STRING([[--enable-gold[=ARG]]],
336 [build gold @<:@ARG={default,yes,no}@:>@])],
5afab7ad
ILT		 337ENABLE_GOLD=$enableval,
338ENABLE_GOLD=no)
21539e2e
MK		 339case "${ENABLE_GOLD}" in
340 yes|default)
38e3d868
RM		 341 # Check for ELF target.
342 is_elf=no
343 case "${target}" in
344 *-*-elf* | *-*-sysv4* | *-*-unixware* | *-*-eabi* | hppa*64*-*-hpux* \
0e76460f 345 | *-*-linux* | *-*-gnu* | frv-*-uclinux* | *-*-irix5* | *-*-irix6* \
8c6d158a 346 | *-*-netbsd* | *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* \
ff4b7a7e 347 | *-*-solaris2* | *-*-nto* | *-*-nacl*)
38e3d868
RM		 348 case "${target}" in
349 *-*-linux*aout* | *-*-linux*oldld*)
350 ;;
351 *)
352 is_elf=yes
353 ;;
354 esac
355 esac
356
357 if test "$is_elf" = "yes"; then
358 # Check for target supported by gold.
5afab7ad 359 case "${target}" in
7705dfd1 360 i?86-*-* | x86_64-*-* | sparc*-*-* | powerpc*-*-* | arm*-*-* \
fc259b52 361 | aarch64*-*-* | mips*-*-* | s390*-*-* | loongarch*-*-*)
21539e2e
MK		 362 configdirs="$configdirs gold"
363 if test x${ENABLE_GOLD} = xdefault; then
364 default_ld=gold
365 fi
38e3d868 366 ENABLE_GOLD=yes
5afab7ad
ILT		 367 ;;
368 esac
38e3d868
RM		 369 fi
370 ;;
371 no)
372 ;;
373 *)
374 AC_MSG_ERROR([invalid --enable-gold argument])
375 ;;
21539e2e
MK		 376esac
377
378AC_ARG_ENABLE(ld,
33e39b66
AS		 379[AS_HELP_STRING([[--enable-ld[=ARG]]],
380 [build ld @<:@ARG={default,yes,no}@:>@])],
21539e2e
MK		 381ENABLE_LD=$enableval,
382ENABLE_LD=yes)
383
384case "${ENABLE_LD}" in
385 default)
9580395f 386 if test x${default_ld} != x; then
21539e2e
MK		 387 AC_MSG_ERROR([either gold or ld can be the default ld])
388 fi
389 ;;
390 yes)
391 ;;
392 no)
393 if test x${ENABLE_GOLD} != xyes; then
394 AC_MSG_WARN([neither ld nor gold are enabled])
395 fi
396 configdirs=`echo " ${configdirs} " | sed -e 's/ ld / /'`
397 ;;
398 *)
399 AC_MSG_ERROR([invalid --enable-ld argument])
400 ;;
401esac
5afab7ad 402
78edb32f
L		 403# PR gas/19109
404# Decide the default method for compressing debug sections.
405# Provide a configure time option to override our default.
406AC_ARG_ENABLE(compressed_debug_sections,
324402a0 407[AS_HELP_STRING([--enable-compressed-debug-sections={all,gas,gold,ld,none}],
78edb32f
L		 408 [Enable compressed debug sections for gas, gold or ld by
409 default])],
410[
411 if test x"$enable_compressed_debug_sections" = xyes; then
412 AC_MSG_ERROR([no program with compressed debug sections specified])
413 fi
414], [enable_compressed_debug_sections=])
415
6599da04
JM		 416# Configure extra directories which are host specific
417
418case "${host}" in
55380b08 419 *-cygwin*)
4977bab6 420 configdirs="$configdirs libtermcap" ;;
6599da04
JM		 421esac
422
4fab7234
HPN		 423# A target can indicate whether a language isn't supported for some reason.
424# Only spaces may be used in this macro; not newlines or tabs.
425unsupported_languages=
426
6599da04
JM		 427# Remove more programs from consideration, based on the host or
428# target this usually means that a port of the program doesn't
429# exist yet.
430
6599da04 431case "${host}" in
111eeb6e 432 i[[3456789]]86-*-msdosdjgpp*)
c9bdb152 433 noconfigdirs="$noconfigdirs tcl tk itcl"
5d4a5ee6 434 ;;
6599da04
JM		 435esac
436
6de9cd9a 437
87e6d9dc
TB		 438AC_ARG_ENABLE(libquadmath,
439AS_HELP_STRING([--disable-libquadmath],
440 [do not build libquadmath directory]),
441ENABLE_LIBQUADMATH=$enableval,
442ENABLE_LIBQUADMATH=yes)
443if test "${ENABLE_LIBQUADMATH}" = "no" ; then
444 noconfigdirs="$noconfigdirs target-libquadmath"
445fi
446
447
448AC_ARG_ENABLE(libquadmath-support,
449AS_HELP_STRING([--disable-libquadmath-support],
450 [disable libquadmath support for Fortran]),
451ENABLE_LIBQUADMATH_SUPPORT=$enableval,
452ENABLE_LIBQUADMATH_SUPPORT=yes)
453enable_libquadmath_support=
454if test "${ENABLE_LIBQUADMATH_SUPPORT}" = "no" ; then
455 enable_libquadmath_support=no
456fi
457
458
d9cdb878 459AC_ARG_ENABLE(libada,
33e39b66 460[AS_HELP_STRING([--enable-libada], [build libada directory])],
d9cdb878
AC		 461ENABLE_LIBADA=$enableval,
462ENABLE_LIBADA=yes)
463if test "${ENABLE_LIBADA}" != "yes" ; then
5395b47b 464 noconfigdirs="$noconfigdirs gnattools"
d9cdb878
AC		 465fi
466
ef0087a7 467AC_ARG_ENABLE(libssp,
33e39b66 468[AS_HELP_STRING([--enable-libssp], [build libssp directory])],
ef0087a7
KH		 469ENABLE_LIBSSP=$enableval,
470ENABLE_LIBSSP=yes)
ef0087a7 471
2588b26e
RM		 472AC_ARG_ENABLE(libstdcxx,
473AS_HELP_STRING([--disable-libstdcxx],
474 [do not build libstdc++-v3 directory]),
475ENABLE_LIBSTDCXX=$enableval,
476ENABLE_LIBSTDCXX=default)
477[if test "${ENABLE_LIBSTDCXX}" = "no" ; then
1007a55c 478 noconfigdirs="$noconfigdirs target-libstdc++-v3"
2588b26e
RM		 479fi]
480
44a7d18d 481# Enable libgomp by default on hosted POSIX systems, and a few others.
27079765 482if test x$enable_libgomp = x ; then
953ff289 483 case "${target}" in
416ac4d4 484 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
953ff289 485 ;;
8c6d158a 486 *-*-netbsd* | *-*-freebsd* | *-*-openbsd* | *-*-dragonfly*)
953ff289 487 ;;
b24513a1 488 *-*-solaris2* | *-*-hpux11*)
953ff289 489 ;;
cac90078 490 *-*-darwin* | *-*-aix*)
953ff289 491 ;;
29b1533a 492 nvptx*-*-* | amdgcn*-*-*)
44a7d18d 493 ;;
953ff289
DN		 494 *)
495 noconfigdirs="$noconfigdirs target-libgomp"
496 ;;
497 esac
27079765 498fi
953ff289 499
48310492
RH		 500# Disable libatomic on unsupported systems.
501if test -d ${srcdir}/libatomic; then
502 if test x$enable_libatomic = x; then
503 AC_MSG_CHECKING([for libatomic support])
504 if (srcdir=${srcdir}/libatomic; \
505 . ${srcdir}/configure.tgt; \
506 test -n "$UNSUPPORTED")
507 then
508 AC_MSG_RESULT([no])
509 noconfigdirs="$noconfigdirs target-libatomic"
510 else
511 AC_MSG_RESULT([yes])
512 fi
513 fi
514fi
515
e948157d
RH		 516# Disable libitm on unsupported systems.
517if test -d ${srcdir}/libitm; then
518 if test x$enable_libitm = x; then
519 AC_MSG_CHECKING([for libitm support])
520 if (srcdir=${srcdir}/libitm; \
521 . ${srcdir}/configure.tgt; \
522 test -n "$UNSUPPORTED")
523 then
524 AC_MSG_RESULT([no])
525 noconfigdirs="$noconfigdirs target-libitm"
526 else
527 AC_MSG_RESULT([yes])
528 fi
529 fi
0a35513e
AH		 530fi
531
93bf5390
RH		 532# Disable libsanitizer on unsupported systems.
533if test -d ${srcdir}/libsanitizer; then
534 if test x$enable_libsanitizer = x; then
535 AC_MSG_CHECKING([for libsanitizer support])
536 if (srcdir=${srcdir}/libsanitizer; \
537 . ${srcdir}/configure.tgt; \
538 test -n "$UNSUPPORTED")
539 then
540 AC_MSG_RESULT([no])
541 noconfigdirs="$noconfigdirs target-libsanitizer"
542 else
543 AC_MSG_RESULT([yes])
544 fi
545 fi
546fi
547
2077db1b
CT		 548# Disable libvtv on unsupported systems.
549if test -d ${srcdir}/libvtv; then
550 if test x$enable_libvtv = x; then
551 AC_MSG_CHECKING([for libvtv support])
552 if (srcdir=${srcdir}/libvtv; \
553 . ${srcdir}/configure.tgt; \
1e74b850 554 test "$VTV_SUPPORTED" != "yes")
2077db1b
CT		 555 then
556 AC_MSG_RESULT([no])
557 noconfigdirs="$noconfigdirs target-libvtv"
558 else
559 AC_MSG_RESULT([yes])
560 fi
561 fi
562fi
563
d7a29167
DE		 564# Disable libquadmath for some systems.
565case "${target}" in
e7fae550
DE		 566 avr-*-*)
567 noconfigdirs="$noconfigdirs target-libquadmath"
568 ;;
d7a29167
DE		 569 # libquadmath is unused on AIX and libquadmath build process use of
570 # LD_LIBRARY_PATH can break AIX bootstrap.
571 powerpc-*-aix* | rs6000-*-aix*)
572 noconfigdirs="$noconfigdirs target-libquadmath"
573 ;;
574esac
575
1e9e0e23
JM		 576# Disable libssp for some systems.
577case "${target}" in
578 avr-*-*)
b318fb4b 579 # No hosted I/O support.
1e9e0e23
JM		 580 noconfigdirs="$noconfigdirs target-libssp"
581 ;;
91dfef96
JM		 582 bpf-*-*)
583 noconfigdirs="$noconfigdirs target-libssp"
584 ;;
1e9e0e23
JM		 585 powerpc-*-aix* | rs6000-*-aix*)
586 noconfigdirs="$noconfigdirs target-libssp"
587 ;;
8d2af3a2
DD		 588 pru-*-*)
589 # No hosted I/O support.
590 noconfigdirs="$noconfigdirs target-libssp"
591 ;;
85b8555e
DD		 592 rl78-*-*)
593 # libssp uses a misaligned load to trigger a fault, but the RL78
594 # doesn't fault for those - instead, it gives a build-time error
595 # for explicit misaligned loads.
596 noconfigdirs="$noconfigdirs target-libssp"
597 ;;
0969ec7d
EB		 598 visium-*-*)
599 # No hosted I/O support.
600 noconfigdirs="$noconfigdirs target-libssp"
601 ;;
1e9e0e23
JM		 602esac
603
1e9e0e23 604# Disable libstdc++-v3 for some systems.
67a1cb2a 605# Allow user to override this if they pass --enable-libstdcxx
2588b26e
RM		 606if test "${ENABLE_LIBSTDCXX}" = "default" ; then
607 case "${target}" in
608 *-*-vxworks*)
609 # VxWorks uses the Dinkumware C++ library.
610 noconfigdirs="$noconfigdirs target-libstdc++-v3"
611 ;;
afa3d80e
TS		 612 amdgcn*-*-*)
613 # Not ported/fails to build when using newlib.
614 noconfigdirs="$noconfigdirs target-libstdc++-v3"
615 ;;
2588b26e
RM		 616 arm*-wince-pe*)
617 # the C++ libraries don't build on top of CE's C libraries
618 noconfigdirs="$noconfigdirs target-libstdc++-v3"
619 ;;
620 avr-*-*)
621 noconfigdirs="$noconfigdirs target-libstdc++-v3"
622 ;;
91dfef96
JM		 623 bpf-*-*)
624 noconfigdirs="$noconfigdirs target-libstdc++-v3"
625 ;;
fef939d6
JB		 626 ft32-*-*)
627 noconfigdirs="$noconfigdirs target-libstdc++-v3"
628 ;;
2588b26e
RM		 629 esac
630fi
1e9e0e23 631
91dfef96
JM		 632# Disable C++ on systems where it is known to not work.
633# For testing, you can override this with --enable-languages=c++.
634case ,${enable_languages}, in
635 *,c++,*)
636 ;;
637 *)
638 case "${target}" in
639 bpf-*-*)
640 unsupported_languages="$unsupported_languages c++"
641 ;;
642 esac
643 ;;
644esac
645
646# Disable Objc on systems where it is known to not work.
647# For testing, you can override this with --enable-languages=objc.
648case ,${enable_languages}, in
649 *,objc,*)
650 ;;
651 *)
652 case "${target}" in
653 bpf-*-*)
654 unsupported_languages="$unsupported_languages objc"
655 ;;
656 esac
657 ;;
658esac
659
260eedb9
IB		 660# Disable D on systems where it is known to not work.
661# For testing, you can override this with --enable-languages=d.
662case ,${enable_languages}, in
663 *,d,*)
664 ;;
665 *)
666 case "${target}" in
91dfef96 667 bpf-*-*)
260eedb9
IB		 668 unsupported_languages="$unsupported_languages d"
669 ;;
670 esac
671 ;;
672esac
673
674# Disable libphobos on unsupported systems.
675# For testing, you can override this with --enable-libphobos.
676if test -d ${srcdir}/libphobos; then
677 if test x$enable_libphobos = x; then
678 AC_MSG_CHECKING([for libphobos support])
679 if (srcdir=${srcdir}/libphobos; \
680 . ${srcdir}/configure.tgt; \
7d31d331 681 test "$LIBPHOBOS_SUPPORTED" != "yes")
260eedb9
IB		 682 then
683 AC_MSG_RESULT([no])
684 noconfigdirs="$noconfigdirs target-libphobos"
685 else
686 AC_MSG_RESULT([yes])
687 fi
688 fi
689fi
690
1e9e0e23
JM		 691# Disable Fortran for some systems.
692case "${target}" in
693 mmix-*-*)
694 # See <http://gcc.gnu.org/ml/gcc-patches/2004-11/msg00572.html>.
695 unsupported_languages="$unsupported_languages fortran"
696 ;;
91dfef96
JM		 697 bpf-*-*)
698 unsupported_languages="$unsupported_languages fortran"
699 ;;
1e9e0e23
JM		 700esac
701
012447ea
JJ		 702# Disable libffi for some systems.
703case "${target}" in
704 powerpc-*-darwin*)
705 ;;
706 i[[3456789]]86-*-darwin*)
707 ;;
708 x86_64-*-darwin[[912]]*)
709 ;;
710 *-*-darwin*)
711 noconfigdirs="$noconfigdirs target-libffi"
712 ;;
713 *-*-netware*)
714 noconfigdirs="$noconfigdirs target-libffi"
715 ;;
716 *-*-phoenix*)
717 noconfigdirs="$noconfigdirs target-libffi"
718 ;;
719 *-*-rtems*)
720 noconfigdirs="$noconfigdirs target-libffi"
721 ;;
722 *-*-tpf*)
723 noconfigdirs="$noconfigdirs target-libffi"
724 ;;
725 *-*-uclinux*)
726 noconfigdirs="$noconfigdirs target-libffi"
727 ;;
728 *-*-vxworks*)
729 noconfigdirs="$noconfigdirs target-libffi"
730 ;;
b20e7532
AT		 731 aarch64*-*-freebsd*)
732 noconfigdirs="$noconfigdirs target-libffi"
733 ;;
012447ea
JJ		 734 alpha*-*-*vms*)
735 noconfigdirs="$noconfigdirs target-libffi"
736 ;;
737 arm*-*-freebsd*)
738 noconfigdirs="$noconfigdirs target-libffi"
739 ;;
740 arm-wince-pe)
741 noconfigdirs="$noconfigdirs target-libffi"
742 ;;
743 arm*-*-symbianelf*)
744 noconfigdirs="$noconfigdirs target-libffi"
745 ;;
91dfef96
JM		 746 bpf-*-*)
747 noconfigdirs="$noconfigdirs target-libffi"
748 ;;
012447ea
JJ		 749 cris-*-* | crisv32-*-*)
750 case "${target}" in
751 *-*-linux*)
752 ;;
753 *) # See PR46792 regarding target-libffi.
754 noconfigdirs="$noconfigdirs target-libffi";;
755 esac
756 ;;
757 hppa*64*-*-hpux*)
758 noconfigdirs="$noconfigdirs target-libffi"
759 ;;
012447ea
JJ		 760 ia64*-*-*vms*)
761 noconfigdirs="$noconfigdirs target-libffi"
762 ;;
763 i[[3456789]]86-w64-mingw*)
764 noconfigdirs="$noconfigdirs target-libffi"
765 ;;
766 i[[3456789]]86-*-mingw*)
767 noconfigdirs="$noconfigdirs target-libffi"
768 ;;
769 x86_64-*-mingw*)
770 noconfigdirs="$noconfigdirs target-libffi"
771 ;;
772 mmix-*-*)
773 noconfigdirs="$noconfigdirs target-libffi"
774 ;;
775 powerpc-*-aix*)
012447ea
JJ		 776 ;;
777 rs6000-*-aix*)
012447ea
JJ		 778 ;;
779 ft32-*-*)
780 noconfigdirs="$noconfigdirs target-libffi"
781 ;;
782 *-*-lynxos*)
783 noconfigdirs="$noconfigdirs target-libffi"
784 ;;
785esac
786
787# Disable the go frontend on systems where it is known to not work. Please keep
788# this in sync with contrib/config-list.mk.
789case "${target}" in
91dfef96 790*-*-darwin* | *-*-cygwin* | *-*-mingw* | bpf-* )
012447ea
JJ		 791 unsupported_languages="$unsupported_languages go"
792 ;;
793esac
794
f9d09df0
TT		 795# Only allow gdbserver on some systems.
796if test -d ${srcdir}/gdbserver; then
797 if test x$enable_gdbserver = x; then
798 AC_MSG_CHECKING([for gdbserver support])
799 if (srcdir=${srcdir}/gdbserver; \
800 . ${srcdir}/configure.srv; \
801 test -n "$UNSUPPORTED")
802 then
803 AC_MSG_RESULT([no])
804 noconfigdirs="$noconfigdirs gdbserver"
805 else
806 AC_MSG_RESULT([yes])
807 fi
808 fi
809fi
810
cdbc9e92
ILT		 811# Disable libgo for some systems where it is known to not work.
812# For testing, you can easily override this with --enable-libgo.
813if test x$enable_libgo = x; then
814 case "${target}" in
815 *-*-darwin*)
816 # PR 46986
817 noconfigdirs="$noconfigdirs target-libgo"
818 ;;
819 *-*-cygwin* | *-*-mingw*)
820 noconfigdirs="$noconfigdirs target-libgo"
821 ;;
91dfef96
JM		 822 bpf-*-*)
823 noconfigdirs="$noconfigdirs target-libgo"
824 ;;
cdbc9e92
ILT		 825 esac
826fi
827
c03353e2
RIL		 828# Default libgloss CPU subdirectory.
829libgloss_dir="$target_cpu"
6de9cd9a 830
fbcf0dca
JM		 831case "${target}" in
832 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
833 libgloss_dir=wince
834 ;;
4dddfc74
YZ		 835 aarch64*-*-* )
836 libgloss_dir=aarch64
837 ;;
fbcf0dca
JM		 838 arm*-*-*)
839 libgloss_dir=arm
840 ;;
841 cris-*-* | crisv32-*-*)
842 libgloss_dir=cris
843 ;;
844 hppa*-*-*)
845 libgloss_dir=pa
846 ;;
847 i[[3456789]]86-*-*)
848 libgloss_dir=i386
849 ;;
c6c0594e 850 loongarch*-*-*)
851 libgloss_dir=loongarch
852 ;;
fbcf0dca
JM		 853 m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
854 libgloss_dir=m68hc11
855 ;;
856 m68*-*-* | fido-*-*)
857 libgloss_dir=m68k
858 ;;
859 mips*-*-*)
860 libgloss_dir=mips
861 ;;
862 powerpc*-*-*)
863 libgloss_dir=rs6000
864 ;;
8d2af3a2
DD		 865 pru-*-*)
866 libgloss_dir=pru
867 ;;
fbcf0dca
JM		 868 sparc*-*-*)
869 libgloss_dir=sparc
870 ;;
871esac
872
6a789d5e 873# Disable newlib and libgloss for various target OSes.
6599da04 874case "${target}" in
6a789d5e
JM		 875 alpha*-dec-osf*)
876 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
877 ;;
878 i[[3456789]]86-*-linux*)
879 # This section makes it possible to build newlib natively on linux.
880 # If we are using a cross compiler then don't configure newlib.
881 if test x${is_cross_compiler} != xno ; then
882 noconfigdirs="$noconfigdirs target-newlib"
883 fi
884 noconfigdirs="$noconfigdirs target-libgloss"
885 # If we are not using a cross compiler, do configure newlib.
886 # Note however, that newlib will only be configured in this situation
887 # if the --with-newlib option has been given, because otherwise
888 # 'target-newlib' will appear in skipdirs.
889 ;;
890 i[[3456789]]86-*-rdos*)
891 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
892 ;;
893 sh*-*-pe|mips*-*-pe|arm-wince-pe)
894 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
895 ;;
896 sparc-*-sunos4*)
897 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
898 ;;
91dfef96
JM		 899 bpf-*-*)
900 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
901 ;;
6a789d5e
JM		 902 *-*-aix*)
903 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
904 ;;
905 *-*-beos*)
906 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
907 ;;
3fa03ff9 908 *-*-chorusos)
0036370f 909 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
3fa03ff9 910 ;;
6a789d5e
JM		 911 *-*-dragonfly*)
912 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
913 ;;
914 *-*-freebsd*)
915 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
916 ;;
917 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
918 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
919 ;;
920 *-*-lynxos*)
921 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
922 ;;
923 *-*-mingw*)
924 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
925 ;;
926 *-*-netbsd*)
927 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
928 ;;
929 *-*-netware*)
930 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
931 ;;
932 *-*-tpf*)
933 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
934 ;;
935 *-*-uclinux*)
936 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
937 ;;
938 *-*-vxworks*)
939 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
940 ;;
941esac
942
943case "${target}" in
944 *-*-chorusos)
945 ;;
3be96231
TG		 946 aarch64-*-darwin*)
947 noconfigdirs="$noconfigdirs ld gas gdb gprof"
948 noconfigdirs="$noconfigdirs sim target-rda"
949 ;;
7431c1a1
AS		 950 amdgcn*-*-*)
951 ;;
3be96231
TG		 952 arm-*-darwin*)
953 noconfigdirs="$noconfigdirs ld gas gdb gprof"
954 noconfigdirs="$noconfigdirs sim target-rda"
955 ;;
75eeae1a 956 powerpc-*-darwin*)
e1514c3f 957 noconfigdirs="$noconfigdirs ld gas gdb gprof"
9c8f9ec2 958 noconfigdirs="$noconfigdirs sim target-rda"
940cde4d 959 ;;
354ebf88
RW		 960 i[[3456789]]86-*-darwin*)
961 noconfigdirs="$noconfigdirs ld gprof"
962 noconfigdirs="$noconfigdirs sim target-rda"
963 ;;
964 x86_64-*-darwin[[912]]*)
0db3a858
TG		 965 noconfigdirs="$noconfigdirs ld gas gprof"
966 noconfigdirs="$noconfigdirs sim target-rda"
967 ;;
42c1cd8a
AT		 968 *-*-darwin*)
969 noconfigdirs="$noconfigdirs ld gas gdb gprof"
970 noconfigdirs="$noconfigdirs sim target-rda"
42c1cd8a 971 ;;
8c6d158a 972 *-*-dragonfly*)
8c6d158a 973 ;;
c3f84f61 974 *-*-freebsd*)
88252529 975 if test "x$with_gmp" = x \
c0d0a722 976 && ! test -d ${srcdir}/gmp \
6de9cd9a
DN		 977 && test -f /usr/local/include/gmp.h; then
978 with_gmp=/usr/local
979 fi
6de9cd9a 980 ;;
ef4e7569
US		 981 *-*-kaos*)
982 # Remove unsupported stuff on all kaOS configurations.
ef4e7569
US		 983 noconfigdirs="$noconfigdirs target-libgloss"
984 ;;
51584787 985 *-*-netbsd*)
51584787 986 ;;
61fec9ff 987 *-*-netware*)
6599da04 988 ;;
fd6487af
JS		 989 *-*-phoenix*)
990 noconfigdirs="$noconfigdirs target-libgloss"
991 ;;
3fbc0b70 992 *-*-rtems*)
2909494b 993 noconfigdirs="$noconfigdirs target-libgloss"
3fbc0b70 994 ;;
a8ba31f2
EC		 995 # The tpf target doesn't support gdb yet.
996 *-*-tpf*)
6a789d5e 997 noconfigdirs="$noconfigdirs gdb tcl tk libgui itcl"
a8ba31f2 998 ;;
5785c0ed 999 *-*-uclinux*)
6a789d5e 1000 noconfigdirs="$noconfigdirs target-rda"
5785c0ed 1001 ;;
6599da04 1002 *-*-vxworks*)
6599da04 1003 ;;
b104e095 1004 alpha*-dec-osf*)
603606e7 1005 # ld works, but does not support shared libraries.
6599da04 1006 # gas doesn't generate exception information.
6a789d5e 1007 noconfigdirs="$noconfigdirs gas ld"
6599da04
JM		 1008 ;;
1009 alpha*-*-*vms*)
2909494b 1010 noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
6599da04
JM		 1011 ;;
1012 alpha*-*-*)
1013 # newlib is not 64 bit ready
2909494b 1014 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
6599da04 1015 ;;
91dfef96
JM		 1016 bpf-*-*)
1017 noconfigdirs="$noconfigdirs target-libobjc target-libbacktrace"
1018 ;;
3a685f6f 1019 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
b4f96efe 1020 noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
3a685f6f 1021 ;;
2fd88f4f
AK		 1022 arc*-*-*)
1023 noconfigdirs="$noconfigdirs sim"
1024 ;;
6599da04 1025 arm-*-pe*)
2909494b 1026 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1027 ;;
5d4a5ee6 1028 arm-*-riscix*)
0036370f 1029 noconfigdirs="$noconfigdirs ld target-libgloss"
5d4a5ee6 1030 ;;
b588ae30
GJL		 1031 avr-*-*)
1032 if test x${with_avrlibc} != xno; then
1033 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1034 fi
1035 ;;
a5a438f5 1036 c4x-*-* | tic4x-*-*)
0036370f 1037 noconfigdirs="$noconfigdirs target-libgloss"
ab50d72b 1038 ;;
0036370f
JM		 1039 tic54x-*-*)
1040 noconfigdirs="$noconfigdirs target-libgloss gdb"
ab50d72b 1041 ;;
6599da04 1042 d10v-*-*)
0036370f 1043 noconfigdirs="$noconfigdirs target-libgloss"
d207ebef
JM		 1044 ;;
1045 d30v-*-*)
0036370f 1046 noconfigdirs="$noconfigdirs gdb"
6599da04 1047 ;;
09b5f8bf 1048 fr30-*-elf*)
2909494b 1049 noconfigdirs="$noconfigdirs gdb"
09b5f8bf 1050 ;;
a05c2c75
L		 1051 ft32-*-*)
1052 noconfigdirs="$noconfigdirs target-rda gprof"
1053 ;;
55f2d967 1054 moxie-*-*)
a05c2c75 1055 noconfigdirs="$noconfigdirs"
55f2d967 1056 ;;
ab50d72b 1057 h8300*-*-*)
2909494b 1058 noconfigdirs="$noconfigdirs target-libgloss"
ab50d72b 1059 ;;
6599da04 1060 h8500-*-*)
0036370f 1061 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1062 ;;
a05c2c75
L		 1063 hppa*64*-*-hpux*)
1064 noconfigdirs="$noconfigdirs gdb"
1065 ;;
4569f85e 1066 hppa*64*-*-linux*)
cdbff0ab 1067 ;;
56f8587a 1068 hppa*-*-linux*)
3e732ba0 1069 ;;
6599da04 1070 hppa*-*-*elf* | \
bae29210 1071 hppa*-*-lites* | \
66350331 1072 hppa*-*-openbsd* | \
bae29210 1073 hppa*64*-*-*)
6599da04 1074 ;;
c03353e2 1075 hppa*-*-pro*)
c03353e2 1076 ;;
6599da04 1077 hppa*-*-*)
2909494b 1078 noconfigdirs="$noconfigdirs ld"
d207ebef 1079 ;;
fb87ad5d 1080 i960-*-*)
0036370f 1081 noconfigdirs="$noconfigdirs gdb"
fb87ad5d 1082 ;;
d207ebef
JM		 1083 ia64*-*-elf*)
1084 # No gdb support yet.
1bcce263 1085 noconfigdirs="$noconfigdirs readline libgui itcl gdb"
d207ebef 1086 ;;
ab50d72b 1087 ia64*-**-hpux*)
5a2931d1 1088 # No ld support yet.
a05c2c75 1089 noconfigdirs="$noconfigdirs gdb libgui itcl ld"
ab50d72b 1090 ;;
52535a64 1091 ia64*-*-*vms*)
091fe9ca
TG		 1092 # No ld support yet.
1093 noconfigdirs="$noconfigdirs libgui itcl ld"
52535a64 1094 ;;
ef4c4300 1095 i[[3456789]]86-w64-mingw*)
ef4c4300
KT		 1096 ;;
1097 i[[3456789]]86-*-mingw*)
b91f0a41 1098 target_configdirs="$target_configdirs target-winsup"
5d571eaa 1099 ;;
d207ebef
JM		 1100 *-*-cygwin*)
1101 target_configdirs="$target_configdirs target-libtermcap target-winsup"
1bcce263 1102 noconfigdirs="$noconfigdirs target-libgloss"
801e2270 1103 # always build newlib if winsup directory is present.
b91f0a41 1104 if test -d "$srcdir/winsup/cygwin"; then
801e2270 1105 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
c8e6cd41 1106 elif test -d "$srcdir/newlib"; then
b91f0a41 1107 echo "Warning: winsup/cygwin is missing so newlib can't be built."
801e2270 1108 fi
5d571eaa 1109 ;;
f2a0e225 1110 i[[3456789]]86-*-pe)
ebb9f8b0 1111 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1112 ;;
f2a0e225 1113 i[[3456789]]86-*-sco3.2v5*)
6599da04
JM		 1114 # The linker does not yet know about weak symbols in COFF,
1115 # and is not configured to handle mixed ELF and COFF.
0036370f 1116 noconfigdirs="$noconfigdirs ld target-libgloss"
6599da04 1117 ;;
f2a0e225 1118 i[[3456789]]86-*-sco*)
0036370f 1119 noconfigdirs="$noconfigdirs gprof target-libgloss"
6599da04 1120 ;;
fbdd5d87 1121 i[[3456789]]86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*)
7c01b2b5 1122 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1123 ;;
f2a0e225 1124 i[[3456789]]86-*-sysv4*)
0036370f 1125 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1126 ;;
f2a0e225 1127 i[[3456789]]86-*-beos*)
6a789d5e 1128 noconfigdirs="$noconfigdirs gdb"
3aa83176 1129 ;;
d1f8db0c 1130 i[[3456789]]86-*-rdos*)
6a789d5e 1131 noconfigdirs="$noconfigdirs gdb"
c03353e2 1132 ;;
d344dce9 1133 mmix-*-*)
2909494b 1134 noconfigdirs="$noconfigdirs gdb"
d344dce9 1135 ;;
ab34901f 1136 mt-*-*)
79dd769c
AH		 1137 noconfigdirs="$noconfigdirs sim"
1138 ;;
58b40a67
FT		 1139 nfp-*-*)
1140 noconfigdirs="$noconfigdirs ld gas gdb gprof sim"
1141 noconfigdirs="$noconfigdirs $target_libraries"
1142 ;;
e6cbe965
SC		 1143 pdp11-*-*)
1144 noconfigdirs="$noconfigdirs gdb gprof"
1145 ;;
6599da04
JM		 1146 powerpc-*-aix*)
1147 # copied from rs6000-*-* entry
6a789d5e 1148 noconfigdirs="$noconfigdirs gprof"
6599da04 1149 ;;
4569f85e 1150 powerpc*-*-winnt* | powerpc*-*-pe*)
6599da04 1151 target_configdirs="$target_configdirs target-winsup"
0036370f 1152 noconfigdirs="$noconfigdirs gdb tcl tk target-libgloss itcl"
6599da04
JM		 1153 # always build newlib.
1154 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1155 ;;
1156 # This is temporary until we can link against shared libraries
1157 powerpcle-*-solaris*)
0036370f 1158 noconfigdirs="$noconfigdirs gdb sim tcl tk itcl"
6599da04 1159 ;;
0da3b5a7 1160 powerpc-*-beos*)
6a789d5e 1161 noconfigdirs="$noconfigdirs gdb"
d207ebef 1162 ;;
6599da04 1163 rs6000-*-lynxos*)
6a789d5e 1164 noconfigdirs="$noconfigdirs gprof"
6599da04
JM		 1165 ;;
1166 rs6000-*-aix*)
6a789d5e 1167 noconfigdirs="$noconfigdirs gprof"
6599da04
JM		 1168 ;;
1169 rs6000-*-*)
2909494b 1170 noconfigdirs="$noconfigdirs gprof"
6599da04
JM		 1171 ;;
1172 m68k-apollo-*)
0036370f 1173 noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss"
6599da04 1174 ;;
ca9fe997 1175 microblaze*)
2909494b 1176 noconfigdirs="$noconfigdirs gprof"
ca9fe997 1177 ;;
74ae587e 1178 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
d9dced13
RS		 1179 if test x$with_newlib = xyes; then
1180 noconfigdirs="$noconfigdirs gprof"
1181 fi
d9dced13 1182 ;;
6599da04 1183 mips*-*-irix5*)
0036370f 1184 noconfigdirs="$noconfigdirs gprof target-libgloss"
6599da04
JM		 1185 ;;
1186 mips*-*-irix6*)
2909494b 1187 noconfigdirs="$noconfigdirs gprof target-libgloss"
6599da04 1188 ;;
6599da04 1189 mips*-*-bsd*)
bc98bcc4 1190 noconfigdirs="$noconfigdirs ld gas gprof target-libgloss"
6599da04 1191 ;;
9bec4bf0 1192 mips*-*-linux*)
9bec4bf0 1193 ;;
bc98bcc4
JBG		 1194 mips*-*-ultrix* | mips*-*-osf* | mips*-*-ecoff* | mips*-*-pe* \
1195 | mips*-*-irix* | mips*-*-lnews* | mips*-*-riscos*)
1196 noconfigdirs="$noconfigdirs ld gas gprof"
1197 ;;
6599da04 1198 mips*-*-*)
2909494b 1199 noconfigdirs="$noconfigdirs gprof"
6599da04 1200 ;;
738f2522 1201 nvptx*-*-*)
738f2522
BS		 1202 noconfigdirs="$noconfigdirs target-libssp target-libstdc++-v3 target-libobjc"
1203 ;;
bc6d9014 1204 sh-*-*)
ea2002ba
CB		 1205 case "${target}" in
1206 sh*-*-elf)
2909494b 1207 ;;
ea2002ba 1208 *)
2909494b 1209 noconfigdirs="$noconfigdirs target-libgloss" ;;
ea2002ba 1210 esac
6599da04
JM		 1211 ;;
1212 sparc-*-sunos4*)
6a789d5e 1213 if test x${is_cross_compiler} = xno ; then
6599da04
JM		 1214 use_gnu_ld=no
1215 fi
1216 ;;
b42f0d7e 1217 tic6x-*-*)
0d557ff8 1218 noconfigdirs="$noconfigdirs sim"
b42f0d7e 1219 ;;
6599da04 1220 v810-*-*)
0036370f 1221 noconfigdirs="$noconfigdirs bfd binutils gas gdb ld opcodes target-libgloss"
6599da04
JM		 1222 ;;
1223 vax-*-*)
2909494b 1224 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
6599da04 1225 ;;
1fc1d82e
MR		 1226 wasm32-*-*)
1227 noconfigdirs="$noconfigdirs ld"
1228 ;;
c6c0594e 1229 loongarch*-*-linux*)
1230 ;;
1231 loongarch*-*-*)
1232 noconfigdirs="$noconfigdirs gprof"
1233 ;;
6599da04
JM		 1234esac
1235
6599da04
JM		 1236# If we aren't building newlib, then don't build libgloss, since libgloss
1237# depends upon some newlib header files.
1238case "${noconfigdirs}" in
1239 *target-libgloss*) ;;
1240 *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
55380b08 1241esac
6599da04 1242
55380b08 1243# Work in distributions that contain no compiler tools, like Autoconf.
671aa708 1244host_makefile_frag=/dev/null
55380b08
NN		 1245if test -d ${srcdir}/config ; then
1246case "${host}" in
f2a0e225 1247 i[[3456789]]86-*-msdosdjgpp*)
55380b08
NN		 1248 host_makefile_frag="config/mh-djgpp"
1249 ;;
1250 *-cygwin*)
2a79c47f 1251 ACX_CHECK_CYGWIN_CAT_WORKS
55380b08
NN		 1252 host_makefile_frag="config/mh-cygwin"
1253 ;;
c53a18d3 1254 *-mingw*)
1f5a6b84 1255 host_makefile_frag="config/mh-mingw"
738a52d3 1256 ;;
cabb9d59 1257 alpha*-linux*)
13be44ed
UB		 1258 host_makefile_frag="config/mh-alpha-linux"
1259 ;;
111eeb6e 1260 hppa*-hp-hpux*)
00afcaa0
PB		 1261 host_makefile_frag="config/mh-pa"
1262 ;;
1263 hppa*-*)
1264 host_makefile_frag="config/mh-pa"
1265 ;;
54258e22 1266 i?86-*-darwin[[89]]* | i?86-*-darwin1[[0-7]]* | powerpc*-*-darwin*)
d8ed14ce 1267 host_makefile_frag="config/mh-darwin"
be8fff81 1268 ;;
d19bca38
PB		 1269 powerpc-*-aix*)
1270 host_makefile_frag="config/mh-ppc-aix"
1271 ;;
1272 rs6000-*-aix*)
1273 host_makefile_frag="config/mh-ppc-aix"
1274 ;;
55380b08
NN		 1275esac
1276fi
1277
e4c9c075 1278if test "${build}" != "${host}" ; then
0999159b
PB		 1279 AR_FOR_BUILD=${AR_FOR_BUILD-ar}
1280 AS_FOR_BUILD=${AS_FOR_BUILD-as}
e4c9c075 1281 CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
c841dc0a 1282 CPP_FOR_BUILD="${CPP_FOR_BUILD-\$(CC_FOR_BUILD) -E}"
0999159b 1283 CXX_FOR_BUILD=${CXX_FOR_BUILD-g++}
3b5e8ee4 1284 DSYMUTIL_FOR_BUILD=${DSYMUTIL_FOR_BUILD-dsymutil}
0999159b 1285 GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran}
632e2a07 1286 GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo}
b4c522fa 1287 GDC_FOR_BUILD=${GDC_FOR_BUILD-gdc}
0999159b
PB		 1288 DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool}
1289 LD_FOR_BUILD=${LD_FOR_BUILD-ld}
1290 NM_FOR_BUILD=${NM_FOR_BUILD-nm}
1291 RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib}
1292 WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres}
1293 WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc}
e4c9c075 1294else
0999159b
PB		 1295 AR_FOR_BUILD="\$(AR)"
1296 AS_FOR_BUILD="\$(AS)"
e4c9c075 1297 CC_FOR_BUILD="\$(CC)"
0999159b 1298 CXX_FOR_BUILD="\$(CXX)"
3b5e8ee4 1299 DSYMUTIL_FOR_BUILD="\$(DSYMUTIL)"
0999159b 1300 GFORTRAN_FOR_BUILD="\$(GFORTRAN)"
632e2a07 1301 GOC_FOR_BUILD="\$(GOC)"
b4c522fa 1302 GDC_FOR_BUILD="\$(GDC)"
0999159b
PB		 1303 DLLTOOL_FOR_BUILD="\$(DLLTOOL)"
1304 LD_FOR_BUILD="\$(LD)"
1305 NM_FOR_BUILD="\$(NM)"
1306 RANLIB_FOR_BUILD="\$(RANLIB)"
1307 WINDRES_FOR_BUILD="\$(WINDRES)"
1308 WINDMC_FOR_BUILD="\$(WINDMC)"
c3a86da9 1309fi
e4c9c075 1310
91743432 1311AC_PROG_CC_C99
c3a86da9
DJ		 1312AC_PROG_CXX
1313
1314# We must set the default linker to the linker used by gcc for the correct
1315# operation of libtool. If LD is not defined and we are using gcc, try to
1316# set the LD default to the ld used by gcc.
1317if test -z "$LD"; then
1318 if test "$GCC" = yes; then
1319 case $build in
1320 *-*-mingw*)
1321 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1322 *)
1323 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1324 esac
1325 case $gcc_prog_ld in
1326 # Accept absolute paths.
1327 [[\\/]* | [A-Za-z]:[\\/]*)]
1328 LD="$gcc_prog_ld" ;;
1329 esac
1330 fi
e4c9c075
PB		 1331fi
1332
0b21f5d3
EB		 1333# Check whether -static-libstdc++ -static-libgcc is supported.
1334have_static_libs=no
1335if test "$GCC" = yes; then
1336 saved_LDFLAGS="$LDFLAGS"
1337
1338 LDFLAGS="$LDFLAGS -static-libstdc++ -static-libgcc"
1339 AC_MSG_CHECKING([whether g++ accepts -static-libstdc++ -static-libgcc])
1340 AC_LANG_PUSH(C++)
22e05272 1341 AC_LINK_IFELSE([AC_LANG_SOURCE([
0d6414b2
EB		 1342#if (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 5)
1343#error -static-libstdc++ not implemented
1344#endif
22e05272 1345int main() {}])],
0b21f5d3
EB		 1346 [AC_MSG_RESULT([yes]); have_static_libs=yes],
1347 [AC_MSG_RESULT([no])])
1348 AC_LANG_POP(C++)
1349
1350 LDFLAGS="$saved_LDFLAGS"
1351fi
1352
e4c9c075 1353ACX_PROG_GNAT
5fee5ec3 1354ACX_PROG_GDC
a76494aa 1355ACX_PROG_CMP_IGNORE_INITIAL
e4c9c075 1356
ff3ac0f4
ILT		 1357AC_ARG_ENABLE([bootstrap],
1358[AS_HELP_STRING([--enable-bootstrap],
1359 [enable bootstrapping @<:@yes if native build@:>@])],,
1360enable_bootstrap=default)
1361
1362# Issue errors and warnings for invalid/strange bootstrap combinations.
bf03b9ff
ILT		 1363if test -r $srcdir/gcc/configure; then
1364 have_compiler=yes
1365else
1366 have_compiler=no
1367fi
ff3ac0f4
ILT		 1368
1369case "$have_compiler:$host:$target:$enable_bootstrap" in
1370 *:*:*:no) ;;
1371
1372 # Default behavior. Enable bootstrap if we have a compiler
1373 # and we are in a native configuration.
1374 yes:$build:$build:default)
1375 enable_bootstrap=yes ;;
1376
1377 *:*:*:default)
1378 enable_bootstrap=no ;;
1379
1380 # We have a compiler and we are in a native configuration, bootstrap is ok
1381 yes:$build:$build:yes)
1382 ;;
1383
1384 # Other configurations, but we have a compiler. Assume the user knows
1385 # what he's doing.
1386 yes:*:*:yes)
1387 AC_MSG_WARN([trying to bootstrap a cross compiler])
1388 ;;
1389
1390 # No compiler: if they passed --enable-bootstrap explicitly, fail
1391 no:*:*:yes)
1392 AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1393
1394 # Fail if wrong command line
1395 *)
1396 AC_MSG_ERROR([invalid option for --enable-bootstrap])
1397 ;;
1398esac
1399
5329b59a 1400# When bootstrapping with GCC, build stage 1 in C++11 mode to ensure that a
ffac9597
JM		 1401# C++11 compiler can still start the bootstrap. Otherwise, if building GCC,
1402# require C++11 (or higher).
46070488 1403if test "$enable_bootstrap:$GXX" = "yes:yes"; then
5329b59a 1404 CXX="$CXX -std=c++11"
ffac9597
JM		 1405elif test "$have_compiler" = yes; then
1406 AX_CXX_COMPILE_STDCXX(11)
7ffcf5d6
TB		 1407
1408 if test "${build}" != "${host}"; then
1409 AX_CXX_COMPILE_STDCXX(11, [], [], [_FOR_BUILD])
1410 fi
46070488
JM		 1411fi
1412
4a5e71f2
L		 1413AC_ARG_ENABLE([pgo-build],
1414[AS_HELP_STRING([--enable-pgo-build[[=lto]]],
1415 [enable the PGO build])],
1416[enable_pgo_build=$enableval],
1417[enable_pgo_build=no])
1418
1419# Issue errors and warnings for invalid/strange PGO build combinations.
1420case "$have_compiler:$host:$target:$enable_pgo_build" in
1421 *:*:*:no) ;;
1422
1423 # Allow the PGO build only if we aren't building a compiler and
1424 # we are in a native configuration.
1425 no:$build:$build:yes | no:$build:$build:lto) ;;
1426
1427 # Disallow the PGO bootstrap if we are building a compiler.
1428 yes:*:*:yes | yes:*:*:lto)
1429 AC_MSG_ERROR([cannot perform the PGO bootstrap when building a compiler]) ;;
1430
1431 *)
1432 AC_MSG_ERROR([invalid option for --enable-pgo-build])
1433 ;;
1434esac
1435
1436if test "$enable_pgo_build" != "no"; then
1437 AC_MSG_CHECKING([whether the compiler supports -fprofile-generate])
1438 old_CFLAGS="$CFLAGS"
1439 PGO_BUILD_GEN_CFLAGS="-fprofile-generate"
1440 CFLAGS="$CFLAGS $PGO_BUILD_CFLAGS"
1441 AC_COMPILE_IFELSE([AC_LANG_SOURCE([int foo;])],,
1442 [PGO_BUILD_GEN_CFLAGS=])
1443 CFLAGS="$old_CFLAGS"
1444 if test -n "$PGO_BUILD_GEN_CFLAGS"; then
1445 AC_MSG_RESULT([yes])
1446 PGO_BUILD_USE_CFLAGS="-fprofile-use"
1447 else
1448 AC_MSG_RESULT([no])
1449 AC_MSG_ERROR([cannot perform the PGO build without -fprofile-generate])
1450 fi
1451
1452 if test "$enable_pgo_build" = "lto"; then
1453 AC_MSG_CHECKING([whether the compiler supports -flto=jobserver -ffat-lto-objects])
1454 old_CFLAGS="$CFLAGS"
1455 PGO_BUILD_LTO_CFLAGS="-flto=jobserver -ffat-lto-objects"
1456 CFLAGS="$CFLAGS $PGO_BUILD_LTO_CFLAGS"
1457 AC_COMPILE_IFELSE([AC_LANG_SOURCE([int foo;])],,
1458 [PGO_BUILD_LTO_CFLAGS=])
1459 CFLAGS="$old_CFLAGS"
1460 if test -n "$PGO_BUILD_LTO_CFLAGS"; then
1461 AC_MSG_RESULT([yes])
1462 else
1463 AC_MSG_RESULT([no])
1464 AC_MSG_WARN([LTO is disabled for the PGO build])
1465 fi
1466 fi
1467fi
1468AC_SUBST(PGO_BUILD_GEN_CFLAGS)
1469AC_SUBST(PGO_BUILD_USE_CFLAGS)
1470AC_SUBST(PGO_BUILD_LTO_CFLAGS)
1471
592c90ff
KG		 1472# Used for setting $lt_cv_objdir
1473_LT_CHECK_OBJDIR
1474
acd26225 1475# Check for GMP, MPFR and MPC
3a5729ea 1476gmplibs="-lmpc -lmpfr -lgmp"
6de9cd9a 1477gmpinc=
e69bf64b 1478have_gmp=no
acd26225
KG		 1479
1480# Specify a location for mpc
1481# check for this first so it ends up on the link line before mpfr.
33e39b66
AS		 1482AC_ARG_WITH(mpc,
1483[AS_HELP_STRING([--with-mpc=PATH],
1484 [specify prefix directory for installed MPC package.
1485 Equivalent to --with-mpc-include=PATH/include
1486 plus --with-mpc-lib=PATH/lib])])
1487AC_ARG_WITH(mpc-include,
1488[AS_HELP_STRING([--with-mpc-include=PATH],
1489 [specify directory for installed MPC include files])])
1490AC_ARG_WITH(mpc-lib,
1491[AS_HELP_STRING([--with-mpc-lib=PATH],
1492 [specify directory for the installed MPC library])])
acd26225
KG		 1493
1494if test "x$with_mpc" != x; then
3a5729ea
KG		 1495 gmplibs="-L$with_mpc/lib $gmplibs"
1496 gmpinc="-I$with_mpc/include $gmpinc"
acd26225
KG		 1497fi
1498if test "x$with_mpc_include" != x; then
3a5729ea 1499 gmpinc="-I$with_mpc_include $gmpinc"
acd26225
KG		 1500fi
1501if test "x$with_mpc_lib" != x; then
3a5729ea 1502 gmplibs="-L$with_mpc_lib $gmplibs"
acd26225
KG		 1503fi
1504if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then
592c90ff 1505 gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs"
3a5729ea 1506 gmpinc='-I$$s/mpc/src '"$gmpinc"
acd26225
KG		 1507 # Do not test the mpc version. Assume that it is sufficient, since
1508 # it is in the source tree, and the library has not been built yet
1509 # but it would be included on the link line in the version check below
1510 # hence making the test fail.
3a5729ea 1511 have_gmp=yes
acd26225 1512fi
e69bf64b 1513
bebf829d
PB		 1514# Specify a location for mpfr
1515# check for this first so it ends up on the link line before gmp.
33e39b66
AS		 1516AC_ARG_WITH(mpfr,
1517[AS_HELP_STRING([--with-mpfr=PATH],
1518 [specify prefix directory for installed MPFR package.
1519 Equivalent to --with-mpfr-include=PATH/include
1520 plus --with-mpfr-lib=PATH/lib])])
1521AC_ARG_WITH(mpfr-include,
1522[AS_HELP_STRING([--with-mpfr-include=PATH],
1523 [specify directory for installed MPFR include files])])
1524AC_ARG_WITH(mpfr-lib,
1525[AS_HELP_STRING([--with-mpfr-lib=PATH],
1526 [specify directory for the installed MPFR library])])
bebf829d
PB		 1527
1528if test "x$with_mpfr" != x; then
1529 gmplibs="-L$with_mpfr/lib $gmplibs"
3a5729ea 1530 gmpinc="-I$with_mpfr/include $gmpinc"
bebf829d 1531fi
8a877c9c 1532if test "x$with_mpfr_include" != x; then
3a5729ea 1533 gmpinc="-I$with_mpfr_include $gmpinc"
8a877c9c
KG		 1534fi
1535if test "x$with_mpfr_lib" != x; then
1536 gmplibs="-L$with_mpfr_lib $gmplibs"
1537fi
e69bf64b 1538if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
8f3675f8
MR		 1539 # MPFR v3.1.0 moved the sources into a src sub-directory.
1540 if ! test -d ${srcdir}/mpfr/src; then
1541 AC_MSG_ERROR([dnl
1542Building GCC with MPFR in the source tree is only handled for MPFR 3.1.0+.])
1543 fi
00f35794
BE		 1544 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir $gmplibs"
1545 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr/src -I$$s/mpfr/src '"$gmpinc"
1546 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr/src --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir"
e69bf64b
PB		 1547 # Do not test the mpfr version. Assume that it is sufficient, since
1548 # it is in the source tree, and the library has not been built yet
1549 # but it would be included on the link line in the version check below
1550 # hence making the test fail.
1551 have_gmp=yes
1552fi
bebf829d 1553
6de9cd9a 1554# Specify a location for gmp
33e39b66
AS		 1555AC_ARG_WITH(gmp,
1556[AS_HELP_STRING([--with-gmp=PATH],
1557 [specify prefix directory for the installed GMP package.
1558 Equivalent to --with-gmp-include=PATH/include
1559 plus --with-gmp-lib=PATH/lib])])
1560AC_ARG_WITH(gmp-include,
1561[AS_HELP_STRING([--with-gmp-include=PATH],
1562 [specify directory for installed GMP include files])])
1563AC_ARG_WITH(gmp-lib,
1564[AS_HELP_STRING([--with-gmp-lib=PATH],
1565 [specify directory for the installed GMP library])])
6de9cd9a 1566
6de9cd9a 1567
bebf829d
PB		 1568if test "x$with_gmp" != x; then
1569 gmplibs="-L$with_gmp/lib $gmplibs"
1570 gmpinc="-I$with_gmp/include $gmpinc"
6de9cd9a 1571fi
8a877c9c
KG		 1572if test "x$with_gmp_include" != x; then
1573 gmpinc="-I$with_gmp_include $gmpinc"
1574fi
1575if test "x$with_gmp_lib" != x; then
1576 gmplibs="-L$with_gmp_lib $gmplibs"
1577fi
e69bf64b 1578if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then
592c90ff 1579 gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs"
e69bf64b 1580 gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
9183bdcf 1581 extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
592c90ff 1582 extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
0ff2d841 1583 extra_isl_gmp_configure_flags='--with-gmp-builddir=$$r/$(HOST_SUBDIR)/gmp'
e69bf64b
PB		 1584 # Do not test the gmp version. Assume that it is sufficient, since
1585 # it is in the source tree, and the library has not been built yet
1586 # but it would be included on the link line in the version check below
1587 # hence making the test fail.
1588 have_gmp=yes
1589fi
6de9cd9a 1590
d943d7c4 1591if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then
e69bf64b
PB		 1592 have_gmp=yes
1593 saved_CFLAGS="$CFLAGS"
1594 CFLAGS="$CFLAGS $gmpinc"
362c6d2f
KG		 1595 # Check for the recommended and required versions of GMP.
1596 AC_MSG_CHECKING([for the correct version of gmp.h])
e69bf64b 1597 AC_TRY_COMPILE([#include "gmp.h"],[
362c6d2f
KG		 1598 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1599 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
385c0681 1600 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,3)
e48d66a9 1601 choke me
e69bf64b 1602 #endif
e8fd69bb 1603 ], [AC_TRY_COMPILE([#include <gmp.h>],[
362c6d2f
KG		 1604 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1605 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1606 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2)
1607 choke me
1608 #endif
e8fd69bb 1609 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
362c6d2f 1610 [AC_MSG_RESULT([no]); have_gmp=no])
e69bf64b 1611
acd26225 1612 # If we have GMP, check the MPFR version.
e69bf64b 1613 if test x"$have_gmp" = xyes; then
362c6d2f
KG		 1614 # Check for the recommended and required versions of MPFR.
1615 AC_MSG_CHECKING([for the correct version of mpfr.h])
acd26225 1616 AC_TRY_COMPILE([#include <gmp.h>
e69bf64b 1617 #include <mpfr.h>],[
8be34204 1618 #if MPFR_VERSION < MPFR_VERSION_NUM(3,1,0)
e69bf64b
PB		 1619 choke me
1620 #endif
e8fd69bb 1621 ], [AC_TRY_COMPILE([#include <gmp.h>
acd26225 1622 #include <mpfr.h>],[
8be34204 1623 #if MPFR_VERSION < MPFR_VERSION_NUM(3,1,6)
acd26225
KG		 1624 choke me
1625 #endif
e8fd69bb 1626 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
acd26225
KG		 1627 [AC_MSG_RESULT([no]); have_gmp=no])
1628 fi
1629
1630 # Check for the MPC header version.
3a5729ea 1631 if test x"$have_gmp" = xyes ; then
362c6d2f 1632 # Check for the recommended and required versions of MPC.
acd26225
KG		 1633 AC_MSG_CHECKING([for the correct version of mpc.h])
1634 AC_TRY_COMPILE([#include <mpc.h>],[
362c6d2f 1635 #if MPC_VERSION < MPC_VERSION_NUM(0,8,0)
acd26225
KG		 1636 choke me
1637 #endif
e8fd69bb 1638 ], [AC_TRY_COMPILE([#include <mpc.h>],[
362c6d2f
KG		 1639 #if MPC_VERSION < MPC_VERSION_NUM(0,8,1)
1640 choke me
1641 #endif
e8fd69bb 1642 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
362c6d2f 1643 [AC_MSG_RESULT([no]); have_gmp=no])
acd26225
KG		 1644 fi
1645
1646 # Now check the MPFR library.
1647 if test x"$have_gmp" = xyes; then
1648 saved_LIBS="$LIBS"
1649 LIBS="$LIBS $gmplibs"
3a5729ea
KG		 1650 AC_MSG_CHECKING([for the correct version of the gmp/mpfr/mpc libraries])
1651 AC_TRY_LINK([#include <mpc.h>],[
54e433bc
MK		 1652 mpfr_t n;
1653 mpfr_t x;
3a5729ea 1654 mpc_t c;
e69bf64b 1655 int t;
54e433bc
MK		 1656 mpfr_init (n);
1657 mpfr_init (x);
90ca6847
TB		 1658 mpfr_atan2 (n, n, x, MPFR_RNDN);
1659 mpfr_erfc (n, x, MPFR_RNDN);
1660 mpfr_subnormalize (x, t, MPFR_RNDN);
3a5729ea
KG		 1661 mpfr_clear(n);
1662 mpfr_clear(x);
1663 mpc_init2 (c, 53);
1664 mpc_set_ui_ui (c, 1, 1, MPC_RNDNN);
1665 mpc_cosh (c, c, MPC_RNDNN);
1666 mpc_pow (c, c, c, MPC_RNDNN);
1667 mpc_acosh (c, c, MPC_RNDNN);
1668 mpc_clear (c);
acd26225
KG		 1669 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1670 LIBS="$saved_LIBS"
e69bf64b 1671 fi
acd26225 1672
e69bf64b 1673 CFLAGS="$saved_CFLAGS"
6de9cd9a 1674
362c6d2f
KG		 1675# The library versions listed in the error message below should match
1676# the HARD-minimums enforced above.
e69bf64b 1677 if test x$have_gmp != xyes; then
8be34204 1678 AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 3.1.0+ and MPC 0.8.0+.
3a5729ea
KG		 1679Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
1680their locations. Source code for these libraries can be found at
1681their respective hosting sites as well as at
aeebd94c 1682https://gcc.gnu.org/pub/gcc/infrastructure/. See also
45ab87d4 1683http://gcc.gnu.org/install/prerequisites.html for additional info. If
3a5729ea
KG		 1684you obtained GMP, MPFR and/or MPC from a vendor distribution package,
1685make sure that you have installed both the libraries and the header
1686files. They may be located in separate packages.])
e69bf64b 1687 fi
70ec446f
KG		 1688fi
1689
acd26225 1690# Flags needed for both GMP, MPFR and/or MPC.
6de9cd9a
DN		 1691AC_SUBST(gmplibs)
1692AC_SUBST(gmpinc)
9e3eba15 1693AC_SUBST(extra_mpfr_configure_flags)
acd26225
KG		 1694AC_SUBST(extra_mpc_gmp_configure_flags)
1695AC_SUBST(extra_mpc_mpfr_configure_flags)
0ff2d841 1696AC_SUBST(extra_isl_gmp_configure_flags)
6de9cd9a 1697
00020c16
ILT		 1698# Libraries to use for stage1 or when not bootstrapping.
1699AC_ARG_WITH(stage1-libs,
33e39b66 1700[AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])],
00020c16
ILT		 1701[if test "$withval" = "no" -o "$withval" = "yes"; then
1702 stage1_libs=
1703 else
1704 stage1_libs=$withval
1705 fi],
5dc85f7e 1706[stage1_libs=])
00020c16
ILT		 1707AC_SUBST(stage1_libs)
1708
aac9103b
TT		 1709# Whether or not to use -static-libstdc++ and -static-libgcc. The
1710# default is yes if gcc is being built; no otherwise. The reason for
1711# this default is that gdb is sometimes linked against GNU Source
1712# Highlight, which is a shared library that uses C++ exceptions. In
1713# this case, -static-libstdc++ will cause crashes.
1714AC_ARG_WITH(static-standard-libraries,
1715[AS_HELP_STRING([--with-static-standard-libraries],
1716 [use -static-libstdc++ and -static-libgcc (default=auto)])],
1717[], [with_static_standard_libraries=auto])
1718if test "$with_static_standard_libraries" = auto; then
1719 with_static_standard_libraries=$have_compiler
1720fi
1721
0b21f5d3
EB		 1722# Linker flags to use for stage1 or when not bootstrapping.
1723AC_ARG_WITH(stage1-ldflags,
1724[AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])],
1725[if test "$withval" = "no" -o "$withval" = "yes"; then
1726 stage1_ldflags=
1727 else
1728 stage1_ldflags=$withval
1729 fi],
1730[stage1_ldflags=
1731 # In stage 1, default to linking libstdc++ and libgcc statically with GCC
1732 # if supported. But if the user explicitly specified the libraries to use,
1733 # trust that they are doing what they want.
aac9103b
TT		 1734 if test "$with_static_standard_libraries" = yes -a "$stage1_libs" = "" \
1735 -a "$have_static_libs" = yes; then
0b21f5d3
EB		 1736 stage1_ldflags="-static-libstdc++ -static-libgcc"
1737 fi])
1738AC_SUBST(stage1_ldflags)
1739
5dc85f7e 1740# Libraries to use for stage2 and later builds.
00020c16 1741AC_ARG_WITH(boot-libs,
33e39b66 1742[AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])],
00020c16
ILT		 1743[if test "$withval" = "no" -o "$withval" = "yes"; then
1744 poststage1_libs=
1745 else
e90e6bd7 1746 poststage1_libs=$withval
00020c16 1747 fi],
5dc85f7e 1748[poststage1_libs=])
00020c16
ILT		 1749AC_SUBST(poststage1_libs)
1750
ed2eaa9f
ILT		 1751# Linker flags to use for stage2 and later builds.
1752AC_ARG_WITH(boot-ldflags,
33e39b66
AS		 1753[AS_HELP_STRING([--with-boot-ldflags=FLAGS],
1754 [linker flags for stage2 and later])],
ed2eaa9f
ILT		 1755[if test "$withval" = "no" -o "$withval" = "yes"; then
1756 poststage1_ldflags=
1757 else
1758 poststage1_ldflags=$withval
1759 fi],
1760[poststage1_ldflags=
bec93d73
ILT		 1761 # In stages 2 and 3, default to linking libstdc++ and libgcc
1762 # statically. But if the user explicitly specified the libraries to
1763 # use, trust that they are doing what they want.
1764 if test "$poststage1_libs" = ""; then
ed2eaa9f
ILT		 1765 poststage1_ldflags="-static-libstdc++ -static-libgcc"
1766 fi])
1767AC_SUBST(poststage1_ldflags)
1768
e357a5e0 1769# GCC GRAPHITE dependency isl.
4a9bb2aa 1770# Basic setup is inlined here, actual checks are in config/isl.m4
625afa23 1771
625afa23
RG		 1772AC_ARG_WITH(isl,
1773 [AS_HELP_STRING(
1774 [--with-isl=PATH],
e357a5e0 1775 [Specify prefix directory for the installed isl package.
625afa23
RG		 1776 Equivalent to --with-isl-include=PATH/include
1777 plus --with-isl-lib=PATH/lib])])
1778
eae1a5d4 1779# Treat --without-isl as a request to disable
625afa23 1780# GRAPHITE support and skip all following checks.
eae1a5d4 1781if test "x$with_isl" != "xno"; then
e357a5e0 1782 # Check for isl
625afa23
RG		 1783 dnl Provide configure switches and initialize islinc & isllibs
1784 dnl with user input.
1785 ISL_INIT_FLAGS
e357a5e0 1786 dnl The versions of isl that work for Graphite
e0c0c325 1787 ISL_CHECK_VERSION()
e357a5e0 1788 dnl Only execute fail-action, if isl has been requested.
33ad93b9 1789 ISL_IF_FAILED([
e357a5e0 1790 AC_MSG_ERROR([Unable to find a usable isl. See config.log for details.])])
f8bf9252 1791fi
f8bf9252 1792
e357a5e0 1793# If the isl check failed, disable builds of in-tree variant of isl
625afa23 1794if test "x$with_isl" = xno ||
625afa23 1795 test "x$gcc_cv_isl" = xno; then
4a9bb2aa 1796 noconfigdirs="$noconfigdirs isl"
625afa23 1797 islinc=
eae1a5d4
RG		 1798fi
1799
1800AC_SUBST(isllibs)
625afa23 1801AC_SUBST(islinc)
625afa23 1802
d7f09764
DN		 1803# Check for LTO support.
1804AC_ARG_ENABLE(lto,
33e39b66 1805[AS_HELP_STRING([--enable-lto], [enable link time optimization support])],
d7f09764
DN		 1806enable_lto=$enableval,
1807enable_lto=yes; default_enable_lto=yes)
1808
48215350
DK		 1809ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always.
1810 build_lto_plugin=yes
1811],[if test x"$default_enable_lto" = x"yes" ; then
bb79486c 1812 case $target in
deeba76a 1813 *-apple-darwin[[912]]* | *-cygwin* | *-mingw* | *djgpp*) ;;
48215350 1814 # On other non-ELF platforms, LTO has yet to be validated.
bb79486c
JH		 1815 *) enable_lto=no ;;
1816 esac
3bec79c5 1817 else
db50fe7d
IS		 1818 # Apart from ELF platforms, only Windows and Darwin support LTO so far.
1819 # It would also be nice to check the binutils support, but we don't
3bec79c5
DK		 1820 # have gcc_GAS_CHECK_FEATURE available here. For now, we'll just
1821 # warn during gcc/ subconfigure; unless you're bootstrapping with
1822 # -flto it won't be needed until after installation anyway.
1823 case $target in
9e530bcd 1824 *-cygwin* | *-mingw* | *-apple-darwin* | *djgpp*) ;;
3bec79c5
DK		 1825 *) if test x"$enable_lto" = x"yes"; then
1826 AC_MSG_ERROR([LTO support is not enabled for this target.])
1827 fi
1828 ;;
1829 esac
1830 fi
1cd0b716 1831 # Among non-ELF, only Windows platforms support the lto-plugin so far.
48215350 1832 # Build it unless LTO was explicitly disabled.
1cd0b716 1833 case $target in
48215350 1834 *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;;
1cd0b716
DK		 1835 *) ;;
1836 esac
48215350 1837])
d7f09764 1838
45b3824d
TS		 1839AC_ARG_ENABLE(linker-plugin-configure-flags,
1840 [AS_HELP_STRING([[--enable-linker-plugin-configure-flags=FLAGS]],
1841 [additional flags for configuring linker plugins @<:@none@:>@])],
1842 extra_linker_plugin_configure_flags=$enableval,
1843 extra_linker_plugin_configure_flags=)
1844AC_SUBST(extra_linker_plugin_configure_flags)
1845AC_ARG_ENABLE(linker-plugin-flags,
1846 [AS_HELP_STRING([[--enable-linker-plugin-flags=FLAGS]],
1847 [additional flags for configuring and building linker plugins @<:@none@:>@])],
1848 extra_linker_plugin_flags=$enableval,
1849 extra_linker_plugin_flags=)
1850AC_SUBST(extra_linker_plugin_flags)
1851
cdfee50a
NS		 1852# Enable --enable-host-shared.
1853# Checked early to determine whether jit is an 'all' language
1854AC_ARG_ENABLE(host-shared,
1855[AS_HELP_STRING([--enable-host-shared],
1856 [build host code as shared libraries])],
a1d2b162 1857[host_shared=$enableval
1edfc8f2 1858 case $host in
a1d2b162
IS		 1859 x86_64-*-darwin* | aarch64-*-darwin*)
1860 if test x$host_shared != xyes ; then
1861 # PIC is the default, and actually cannot be switched off.
1862 echo configure.ac: warning: PIC code is required for the configured target, host-shared setting ignored. 1>&2
1863 host_shared=yes
1864 fi ;;
1865 *) ;;
1866 esac],
1edfc8f2 1867[case $host in
a1d2b162
IS		 1868 x86_64-*-darwin* | aarch64-*-darwin*) host_shared=yes ;;
1869 *) host_shared=no ;;
1870 esac])
05048fc2 1871
cdfee50a 1872AC_SUBST(host_shared)
f8bf9252 1873
05048fc2
IS		 1874# If we are building PIC/PIE host executables, and we are building dependent
1875# libs (e.g. GMP) in-tree those libs need to be configured to generate PIC
1876# code.
1877host_libs_picflag=
1878if test "$host_shared" = "yes";then
1879host_libs_picflag='--with-pic'
1880fi
1881AC_SUBST(host_libs_picflag)
1882
0823efed 1883# By default, C and C++ are the only stage 1 languages.
e1888513 1884stage1_languages=,c,
2805b53a 1885
00020c16 1886# Target libraries that we bootstrap.
ad1e5170 1887bootstrap_target_libs=,target-libgcc,
00020c16 1888
e4c9c075
PB		 1889# Figure out what language subdirectories are present.
1890# Look if the user specified --enable-languages="..."; if not, use
1891# the environment variable $LANGUAGES if defined. $LANGUAGES might
1892# go away some day.
1893# NB: embedded tabs in this IF block -- do not untabify
1894if test -d ${srcdir}/gcc; then
1895 if test x"${enable_languages+set}" != xset; then
1896 if test x"${LANGUAGES+set}" = xset; then
1897 enable_languages="${LANGUAGES}"
6b1786aa 1898 echo configure.ac: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
e4c9c075 1899 else
cdfee50a 1900 enable_languages=default
e4c9c075
PB		 1901 fi
1902 else
1903 if test x"${enable_languages}" = x ||
1904 test x"${enable_languages}" = xyes;
1905 then
6b1786aa 1906 echo configure.ac: --enable-languages needs at least one language argument 1>&2
e4c9c075
PB		 1907 exit 1
1908 fi
1909 fi
1910 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
1911
7f26dfa3
FXC		 1912 # 'f95' is the old name for the 'fortran' language. We issue a warning
1913 # and make the substitution.
1914 case ,${enable_languages}, in
1915 *,f95,*)
6b1786aa 1916 echo configure.ac: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
7f26dfa3
FXC		 1917 enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1918 ;;
1919 esac
1920
0823efed
DN		 1921 # If bootstrapping, C++ must be enabled.
1922 case ",$enable_languages,:$enable_bootstrap" in
1923 *,c++,*:*) ;;
1924 *:yes)
ff3ac0f4
ILT		 1925 if test -f ${srcdir}/gcc/cp/config-lang.in; then
1926 enable_languages="${enable_languages},c++"
1927 else
0823efed 1928 AC_MSG_ERROR([bootstrapping requires c++ sources])
ff3ac0f4
ILT		 1929 fi
1930 ;;
1931 esac
1932
e4c9c075
PB		 1933 # First scan to see if an enabled language requires some other language.
1934 # We assume that a given config-lang.in will list all the language
1935 # front ends it requires, even if some are required indirectly.
1936 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1937 case ${lang_frag} in
1938 ..) ;;
1939 # The odd quoting in the next line works around
1940 # an apparent bug in bash 1.12 on linux.
1941 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1942 *)
69ecd18f
ILT		 1943 # From the config-lang.in, get $language, $lang_requires, and
1944 # $lang_requires_boot_languages.
e4c9c075
PB		 1945 language=
1946 lang_requires=
69ecd18f 1947 lang_requires_boot_languages=
d4360477
NS		 1948 # set srcdir during sourcing lang_frag to the gcc dir.
1949 # Sadly overriding srcdir on the . line doesn't work in plain sh as it
1950 # polutes this shell
1951 saved_srcdir=${srcdir}
1952 srcdir=${srcdir}/gcc . ${lang_frag}
1953 srcdir=${saved_srcdir}
69ecd18f 1954 for other in ${lang_requires} ${lang_requires_boot_languages}; do
e4c9c075
PB		 1955 case ,${enable_languages}, in
1956 *,$other,*) ;;
cdfee50a 1957 *,default,*) ;;
e4c9c075
PB		 1958 *,all,*) ;;
1959 *,$language,*)
1960 echo " \`$other' language required by \`$language'; enabling" 1>&2
1961 enable_languages="${enable_languages},${other}"
1962 ;;
1963 esac
1964 done
69ecd18f
ILT		 1965 for other in ${lang_requires_boot_languages} ; do
1966 if test "$other" != "c"; then
1967 case ,${enable_stage1_languages}, in
1968 *,$other,*) ;;
cdfee50a 1969 *,default,*) ;;
69ecd18f
ILT		 1970 *,all,*) ;;
1971 *)
1972 case ,${enable_languages}, in
1973 *,$language,*)
1974 echo " '$other' language required by '$language' in stage 1; enabling" 1>&2
1975 enable_stage1_languages="$enable_stage1_languages,${other}"
1976 ;;
1977 esac
1978 ;;
1979 esac
1980 fi
1981 done
e4c9c075
PB		 1982 ;;
1983 esac
1984 done
1985
e1888513 1986 new_enable_languages=,c,
d7f09764
DN		 1987
1988 # If LTO is enabled, add the LTO front end.
d7f09764 1989 if test "$enable_lto" = "yes" ; then
e4c5bd48
RW		 1990 case ,${enable_languages}, in
1991 *,lto,*) ;;
1992 *) enable_languages="${enable_languages},lto" ;;
1993 esac
1cd0b716 1994 if test "${build_lto_plugin}" = "yes" ; then
d7f09764 1995 configdirs="$configdirs lto-plugin"
d7f09764
DN		 1996 fi
1997 fi
d7f09764 1998
426c1eb0
TS		 1999 # If we're building an offloading compiler, add the LTO front end.
2000 if test x"$enable_as_accelerator_for" != x ; then
2001 case ,${enable_languages}, in
2002 *,lto,*) ;;
2003 *) enable_languages="${enable_languages},lto" ;;
2004 esac
2005 fi
2006
cdfee50a 2007 missing_languages=`echo ",$enable_languages," | sed -e s/,default,/,/ -e s/,all,/,/ -e s/,c,/,/ `
e1888513 2008 potential_languages=,c,
e4c9c075 2009
4da3b0f8
ILT		 2010 enabled_target_libs=
2011 disabled_target_libs=
2012
e4c9c075
PB		 2013 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
2014 case ${lang_frag} in
2015 ..) ;;
2016 # The odd quoting in the next line works around
2017 # an apparent bug in bash 1.12 on linux.
2018 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
2019 *)
2020 # From the config-lang.in, get $language, $target_libs,
2805b53a 2021 # $lang_dirs, $boot_language, and $build_by_default
e4c9c075
PB		 2022 language=
2023 target_libs=
2024 lang_dirs=
1546bb64 2025 subdir_requires=
e1888513
PB		 2026 boot_language=no
2027 build_by_default=yes
d4360477
NS		 2028 # set srcdir during sourcing. See above about save & restore
2029 saved_srcdir=${srcdir}
2030 srcdir=${srcdir}/gcc . ${lang_frag}
2031 srcdir=${saved_srcdir}
e1888513
PB		 2032 if test x${language} = x; then
2033 echo "${lang_frag} doesn't set \$language." 1>&2
2034 exit 1
2035 fi
2036
78767fd9 2037 if test "$language" = "c++"; then
0823efed 2038 boot_language=yes
00020c16
ILT		 2039 fi
2040
178f875a 2041 add_this_lang=no
cdfee50a
NS		 2042 # C is always enabled, so no need to add it again
2043 if test "$language" != "c"; then
2044 case ,${enable_languages}, in
2045 *,${language},*)
2046 # Language was explicitly selected; include it
d4a10d0a 2047 add_this_lang=yes
cdfee50a
NS		 2048 ;;
2049 *,all,*)
2050 # All languages are enabled
2051 add_this_lang=all
2052 ;;
2053 *,default,*)
2054 # 'default' was selected, select it if it is a default language
178f875a 2055 add_this_lang=${build_by_default}
cdfee50a
NS		 2056 ;;
2057 esac
2058 fi
6de9cd9a 2059
1546bb64 2060 # Disable languages that need other directories if these aren't available.
95695ad3 2061 for i in $subdir_requires; do
b6348cb3 2062 test -f "$srcdir/gcc/$i/config-lang.in" && continue
cdfee50a
NS		 2063 case ${add_this_lang} in
2064 yes)
1546bb64
PB		 2065 # Specifically requested language; tell them.
2066 AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
2067 ;;
cdfee50a
NS		 2068 all)
2069 AC_MSG_WARN([The gcc/$i directory contains parts of $language but is missing])
2070 add_this_lang=unsupported
2071 ;;
1546bb64
PB		 2072 *)
2073 # Silently disable.
e1888513 2074 add_this_lang=unsupported
1546bb64
PB		 2075 ;;
2076 esac
2077 done
2078
e1888513 2079 # Disable Ada if no preexisting GNAT is available.
cdfee50a
NS		 2080 case ${add_this_lang}:${language}:${have_gnat} in
2081 yes:ada:no)
e1888513
PB		 2082 # Specifically requested language; tell them.
2083 AC_MSG_ERROR([GNAT is required to build $language])
2084 ;;
cdfee50a
NS		 2085 all:ada:no)
2086 AC_MSG_WARN([GNAT is required to build $language])
2087 add_this_lang=unsupported
2088 ;;
e1888513
PB		 2089 *:ada:no)
2090 # Silently disable.
2091 add_this_lang=unsupported
2092 ;;
2093 esac
2094
5fee5ec3
IB		 2095 # Disable D if no preexisting GDC is available.
2096 case ${add_this_lang}:${language}:${have_gdc} in
2097 yes:d:no)
2098 # Specifically requested language; tell them.
2099 AC_MSG_ERROR([GDC is required to build $language])
2100 ;;
2101 all:d:no)
2102 AC_MSG_WARN([GDC is required to build $language])
2103 add_this_lang=unsupported
2104 ;;
2105 *:d:no)
2106 # Silently disable.
2107 add_this_lang=unsupported
2108 ;;
2109 esac
2110
cdfee50a 2111 # Disable jit if -enable-host-shared not specified
c83027f3
NB		 2112 # but not if building for Mingw. All code in Windows
2113 # is position independent code (PIC).
2114 case $target in
2115 *mingw*) ;;
2116 *)
2117 case ${add_this_lang}:${language}:${host_shared} in
2118 yes:jit:no)
2119 # PR jit/64780: explicitly specify --enable-host-shared
cdfee50a
NS		 2120 AC_MSG_ERROR([
2121Enabling language "jit" requires --enable-host-shared.
2122
2123--enable-host-shared typically slows the rest of the compiler down by
2124a few %, so you must explicitly enable it.
2125
2126If you want to build both the jit and the regular compiler, it is often
2127best to do this via two separate configure/builds, in separate
2128directories, to avoid imposing the performance cost of
2129--enable-host-shared on the regular compiler.])
c83027f3
NB		 2130 ;;
2131 all:jit:no)
2132 AC_MSG_WARN([--enable-host-shared required to build $language])
2133 add_this_lang=unsupported
2134 ;;
2135 *:jit:no)
2136 # Silently disable.
2137 add_this_lang=unsupported
2138 ;;
2139 esac
2140 ;;
2141 esac
cdfee50a
NS		 2142
2143 # Disable a language that is unsupported by the target.
2144 case "${add_this_lang}: $unsupported_languages " in
2145 no:*) ;;
2146 unsupported:*) ;;
2147 *:*" $language "*)
2148 AC_MSG_WARN([${language} not supported for this target])
e1888513 2149 add_this_lang=unsupported
4fab7234
HPN		 2150 ;;
2151 esac
2152
6de9cd9a 2153 case $add_this_lang in
e1888513 2154 unsupported)
e4c9c075 2155 # Remove language-dependent dirs.
4da3b0f8
ILT		 2156 disabled_target_libs="$disabled_target_libs $target_libs"
2157 noconfigdirs="$noconfigdirs $lang_dirs"
2805b53a 2158 ;;
e1888513
PB		 2159 no)
2160 # Remove language-dependent dirs; still show language as supported.
4da3b0f8
ILT		 2161 disabled_target_libs="$disabled_target_libs $target_libs"
2162 noconfigdirs="$noconfigdirs $lang_dirs"
e1888513
PB		 2163 potential_languages="${potential_languages}${language},"
2164 ;;
cdfee50a 2165 all|yes)
e1888513
PB		 2166 new_enable_languages="${new_enable_languages}${language},"
2167 potential_languages="${potential_languages}${language},"
2805b53a 2168 missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
4da3b0f8 2169 enabled_target_libs="$enabled_target_libs $target_libs"
ab9dcd0c
RW		 2170 case "${boot_language}:,$enable_stage1_languages," in
2171 yes:* | *:*,$language,* | *:*,yes, | *:*,all,)
340de83f 2172 # Add to (comma-separated) list of stage 1 languages.
ab9dcd0c
RW		 2173 case ",$stage1_languages," in
2174 *,$language,* | ,yes, | ,all,) ;;
2175 *) stage1_languages="${stage1_languages}${language}," ;;
2176 esac
00020c16 2177 # We need to bootstrap any supporting libraries.
5fee5ec3 2178 bootstrap_target_libs=`echo "${bootstrap_target_libs}${target_libs}," | sed "s/ /,/g"`
2805b53a
NN		 2179 ;;
2180 esac
2181 ;;
e4c9c075
PB		 2182 esac
2183 ;;
2184 esac
2185 done
2186
4da3b0f8
ILT		 2187 # Add target libraries which are only needed for disabled languages
2188 # to noconfigdirs.
2189 if test -n "$disabled_target_libs"; then
2190 for dir in $disabled_target_libs; do
2191 case " $enabled_target_libs " in
2192 *" ${dir} "*) ;;
2193 *) noconfigdirs="$noconfigdirs $dir" ;;
2194 esac
2195 done
2196 fi
2197
e1888513 2198 AC_ARG_ENABLE(stage1-languages,
33e39b66
AS		 2199 [AS_HELP_STRING([[--enable-stage1-languages[=all]]],
2200 [choose additional languages to build during
2201 stage1. Mostly useful for compiler development])],
e1888513
PB		 2202 [case ,${enable_stage1_languages}, in
2203 ,no,|,,)
2204 # Set it to something that will have no effect in the loop below
2205 enable_stage1_languages=c ;;
2206 ,yes,)
2207 enable_stage1_languages=`echo $new_enable_languages | \
2208 sed -e "s/^,//" -e "s/,$//" ` ;;
2209 *,all,*)
2210 enable_stage1_languages=`echo ,$enable_stage1_languages, | \
2211 sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;;
2212 esac
2213
2214 # Add "good" languages from enable_stage1_languages to stage1_languages,
2215 # while "bad" languages go in missing_languages. Leave no duplicates.
2216 for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do
2217 case $potential_languages in
2218 *,$i,*)
2219 case $stage1_languages in
2220 *,$i,*) ;;
2221 *) stage1_languages="$stage1_languages$i," ;;
2222 esac ;;
2223 *)
2224 case $missing_languages in
2225 *,$i,*) ;;
2226 *) missing_languages="$missing_languages$i," ;;
2227 esac ;;
2228 esac
2229 done])
2230
2231 # Remove leading/trailing commas that were added for simplicity
2232 potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
79b4b7d2 2233 missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
e1888513
PB		 2234 stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"`
2235 new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"`
2236
e4c9c075
PB		 2237 if test "x$missing_languages" != x; then
2238 AC_MSG_ERROR([
0cf085e4 2239The following requested languages could not be built: ${missing_languages}
e1888513 2240Supported languages are: ${potential_languages}])
e4c9c075 2241 fi
e4c9c075
PB		 2242 if test "x$new_enable_languages" != "x$enable_languages"; then
2243 echo The following languages will be built: ${new_enable_languages}
e1888513 2244 enable_languages="$new_enable_languages"
e4c9c075 2245 fi
e1888513
PB		 2246
2247 AC_SUBST(stage1_languages)
b2eaac4a 2248 ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" `
e4c9c075
PB		 2249fi
2250
27079765
AH		 2251# Handle --disable-<component> generically.
2252for dir in $configdirs $build_configdirs $target_configdirs ; do
2253 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
ac9e6043
RW		 2254 varname=`echo $dirname | sed -e s/+/_/g`
2255 if eval test x\${enable_${varname}} "=" xno ; then
27079765
AH		 2256 noconfigdirs="$noconfigdirs $dir"
2257 fi
2258done
2259
43c40f3e
RO		 2260# Check for Boehm's garbage collector
2261AC_ARG_ENABLE(objc-gc,
2262[AS_HELP_STRING([--enable-objc-gc],
2263 [enable use of Boehm's garbage collector with the
114bf3f1
MK		 2264 GNU Objective-C runtime])])
2265AC_ARG_WITH([target-bdw-gc],
2266[AS_HELP_STRING([--with-target-bdw-gc=PATHLIST],
2267 [specify prefix directory for installed bdw-gc package.
2268 Equivalent to --with-target-bdw-gc-include=PATH/include
2269 plus --with-target-bdw-gc-lib=PATH/lib])])
2270AC_ARG_WITH([target-bdw-gc-include],
2271[AS_HELP_STRING([--with-target-bdw-gc-include=PATHLIST],
2272 [specify directories for installed bdw-gc include files])])
2273AC_ARG_WITH([target-bdw-gc-lib],
2274[AS_HELP_STRING([--with-target-bdw-gc-lib=PATHLIST],
2275 [specify directories for installed bdw-gc library])])
2276
2277case ,${enable_languages},:${enable_objc_gc} in *,objc,*:yes|*,objc,*:auto)
2278 AC_MSG_CHECKING([for bdw garbage collector])
2279 if test "x$with_target_bdw_gc$with_target_bdw_gc_include$with_target_bdw_gc_lib" = x; then
825fba52
MK		 2280 dnl no bdw-gw options, assume default locations
2281 AC_MSG_RESULT([using bdw-gc in default locations])
114bf3f1
MK		 2282 else
2283 dnl bdw-gw options, first error checking, complete checking in libobjc
2284 if test "x$with_target_bdw_gc_include" = x && test "x$with_target_bdw_gc_lib" != x; then
2285 AC_MSG_ERROR([found --with-target-bdw-gc-lib but --with-target-bdw-gc-include missing])
2286 elif test "x$with_target_bdw_gc_include" != x && test "x$with_target_bdw_gc_lib" = x; then
2287 AC_MSG_ERROR([found --with-target-bdw-gc-include but --with-target-bdw-gc-lib missing])
2288 else
2289 AC_MSG_RESULT([using paths configured with --with-target-bdw-gc options])
2290 fi
2291 fi
43c40f3e
RO		 2292esac
2293
e4cba494 2294# Disable libitm, libsanitizer, libvtv if we're not building C++
99776ebd 2295case ,${enable_languages}, in
1007a55c 2296 *,c++,*)
5e9d6aa4 2297 # Disable libitm, libsanitizer if we're not building libstdc++
1007a55c
JW		 2298 case "${noconfigdirs}" in
2299 *target-libstdc++-v3*)
5e9d6aa4 2300 noconfigdirs="$noconfigdirs target-libitm target-libsanitizer"
1007a55c
JW		 2301 ;;
2302 *) ;;
2303 esac
2304 ;;
99776ebd 2305 *)
e4cba494 2306 noconfigdirs="$noconfigdirs target-libitm target-libsanitizer target-libvtv"
99776ebd
RH		 2307 ;;
2308esac
7cd0cf9c 2309
dc614a83
AB		 2310# If gcc/ is not in the source tree then we'll not be building a
2311# target compiler, assume in that case we don't want to build any
2312# target libraries or tools.
2313#
2314# This was added primarily for the benefit for binutils-gdb who reuse
2315# this configure script, but don't always have target tools available.
2316if test ! -d ${srcdir}/gcc; then
2317 skipdirs="${skipdirs} ${target_configdirs}"
2318fi
2319
9d069a4f
PB		 2320# Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
2321# $build_configdirs and $target_configdirs.
e4c9c075
PB		 2322# If we have the source for $noconfigdirs entries, add them to $notsupp.
2323
2324notsupp=""
2325for dir in . $skipdirs $noconfigdirs ; do
9d069a4f 2326 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
e4c9c075
PB		 2327 if test $dir != . && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2328 configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
2329 if test -r $srcdir/$dirname/configure ; then
2330 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2331 true
2332 else
2333 notsupp="$notsupp $dir"
2334 fi
2335 fi
2336 fi
9d069a4f
PB		 2337 if test $dir != . && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2338 build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
2339 if test -r $srcdir/$dirname/configure ; then
2340 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2341 true
2342 else
2343 notsupp="$notsupp $dir"
2344 fi
2345 fi
2346 fi
e4c9c075
PB		 2347 if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2348 target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
2349 if test -r $srcdir/$dirname/configure ; then
2350 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2351 true
2352 else
2353 notsupp="$notsupp $dir"
2354 fi
2355 fi
2356 fi
2357done
2358
e4c9c075
PB		 2359# Quietly strip out all directories which aren't configurable in this tree.
2360# This relies on all configurable subdirectories being autoconfiscated, which
2361# is now the case.
23f6b2f9
PB		 2362build_configdirs_all="$build_configdirs"
2363build_configdirs=
2364for i in ${build_configdirs_all} ; do
2365 j=`echo $i | sed -e s/build-//g`
2366 if test -f ${srcdir}/$j/configure ; then
2367 build_configdirs="${build_configdirs} $i"
2368 fi
2369done
2370
e4c9c075
PB		 2371configdirs_all="$configdirs"
2372configdirs=
2373for i in ${configdirs_all} ; do
2374 if test -f ${srcdir}/$i/configure ; then
2375 configdirs="${configdirs} $i"
2376 fi
2377done
23f6b2f9 2378
e4c9c075
PB		 2379target_configdirs_all="$target_configdirs"
2380target_configdirs=
2381for i in ${target_configdirs_all} ; do
2382 j=`echo $i | sed -e s/target-//g`
2383 if test -f ${srcdir}/$j/configure ; then
2384 target_configdirs="${target_configdirs} $i"
2385 fi
2386done
2387
45b3824d
TS		 2388# libiberty-linker-plugin is special: it doesn't have its own source directory,
2389# so we have to add it after the preceding checks.
2390if test x"$extra_linker_plugin_flags$extra_linker_plugin_configure_flags" != x
2391then
2392 case " $configdirs " in
2393 *" libiberty "*)
2394 # If we can build libiberty, we can also build libiberty-linker-plugin.
2395 configdirs="$configdirs libiberty-linker-plugin"
2396 extra_linker_plugin_configure_flags="$extra_linker_plugin_configure_flags \
2397 --with-libiberty=../libiberty-linker-plugin";;
2398 *)
2399 AC_MSG_ERROR([libiberty missing]);;
2400 esac
2401fi
2402
fca38047
TS		 2403# Sometimes we have special requirements for the host libiberty.
2404extra_host_libiberty_configure_flags=
2405case " $configdirs " in
15368960 2406 *" lto-plugin "* | *" libcc1 "* | *" gdbserver "*)
fca38047
TS		 2407 # When these are to be built as shared libraries, the same applies to
2408 # libiberty.
2409 extra_host_libiberty_configure_flags=--enable-shared
2410 ;;
04bb15e4
TV		 2411esac
2412AC_SUBST(extra_host_libiberty_configure_flags)
2413
2414# Sometimes we have special requirements for the host zlib.
2415extra_host_zlib_configure_flags=
2416case " $configdirs " in
1c01ebf6
L		 2417 *" bfd "*)
2418 # When bfd is to be built as a shared library, the same applies to
2419 # zlib.
2420 if test "$enable_shared" = "yes"; then
2421 extra_host_zlib_configure_flags=--enable-host-shared
2422 fi
2423 ;;
fca38047 2424esac
1c01ebf6 2425AC_SUBST(extra_host_zlib_configure_flags)
fca38047 2426
e4c9c075
PB		 2427# Produce a warning message for the subdirs we can't configure.
2428# This isn't especially interesting in the Cygnus tree, but in the individual
2429# FSF releases, it's important to let people know when their machine isn't
2430# supported by the one or two programs in a package.
2431
2432if test -n "${notsupp}" && test -z "${norecursion}" ; then
2433 # If $appdirs is non-empty, at least one of those directories must still
2434 # be configured, or we error out. (E.g., if the gas release supports a
2435 # specified target in some subdirs but not the gas subdir, we shouldn't
2436 # pretend that all is well.)
2437 if test -n "$appdirs" ; then
2438 for dir in $appdirs ; do
2439 if test -r $dir/Makefile.in ; then
2440 if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2441 appdirs=""
2442 break
2443 fi
23f6b2f9 2444 if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
e4c9c075
PB		 2445 appdirs=""
2446 break
2447 fi
2448 fi
2449 done
2450 if test -n "$appdirs" ; then
2451 echo "*** This configuration is not supported by this package." 1>&2
2452 exit 1
2453 fi
2454 fi
2455 # Okay, some application will build, or we don't care to check. Still
2456 # notify of subdirs not getting built.
2457 echo "*** This configuration is not supported in the following subdirectories:" 1>&2
2458 echo " ${notsupp}" 1>&2
2459 echo " (Any other directories should still work fine.)" 1>&2
2460fi
2461
2462case "$host" in
2463 *msdosdjgpp*)
2464 enable_gdbtk=no ;;
2465esac
2466
c3a86da9
DJ		 2467# To find our prefix, in gcc_cv_tool_prefix.
2468ACX_TOOL_DIRS
2469
e4c9c075
PB		 2470copy_dirs=
2471
526635cb 2472AC_ARG_WITH([build-sysroot],
33e39b66
AS		 2473 [AS_HELP_STRING([--with-build-sysroot=SYSROOT],
2474 [use sysroot as the system root during the build])],
526635cb
MM		 2475 [if test x"$withval" != x ; then
2476 SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
2477 fi],
2478 [SYSROOT_CFLAGS_FOR_TARGET=])
2479AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
2480
c8aea42c 2481AC_ARG_WITH([debug-prefix-map],
33e39b66
AS		 2482 [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'],
2483 [map A to B, C to D ... in debug information])],
c8aea42c
PB		 2484 [if test x"$withval" != x; then
2485 DEBUG_PREFIX_CFLAGS_FOR_TARGET=
2486 for debug_map in $withval; do
2487 DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map"
2488 done
2489 fi],
2490 [DEBUG_PREFIX_CFLAGS_FOR_TARGET=])
2491AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
2492
1c8bd6a3
PB		 2493# During gcc bootstrap, if we use some random cc for stage1 then CFLAGS
2494# might be empty or "-g". We don't require a C++ compiler, so CXXFLAGS
2495# might also be empty (or "-g", if a non-GCC C++ compiler is in the path).
2496# We want to ensure that TARGET libraries (which we know are built with
2497# gcc) are built with "-O2 -g", so include those options when setting
2498# CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
2499if test "x$CFLAGS_FOR_TARGET" = x; then
fc30054e
AH		 2500 if test "x${is_cross_compiler}" = xyes; then
2501 CFLAGS_FOR_TARGET="-g -O2"
2502 else
2503 CFLAGS_FOR_TARGET=$CFLAGS
2504 case " $CFLAGS " in
2505 *" -O2 "*) ;;
2506 *) CFLAGS_FOR_TARGET="-O2 $CFLAGS_FOR_TARGET" ;;
2507 esac
2508 case " $CFLAGS " in
2509 *" -g "* | *" -g3 "*) ;;
2510 *) CFLAGS_FOR_TARGET="-g $CFLAGS_FOR_TARGET" ;;
2511 esac
2512 fi
1c8bd6a3
PB		 2513fi
2514AC_SUBST(CFLAGS_FOR_TARGET)
2515
2516if test "x$CXXFLAGS_FOR_TARGET" = x; then
fc30054e
AH		 2517 if test "x${is_cross_compiler}" = xyes; then
2518 CXXFLAGS_FOR_TARGET="-g -O2"
2519 else
2520 CXXFLAGS_FOR_TARGET=$CXXFLAGS
2521 case " $CXXFLAGS " in
2522 *" -O2 "*) ;;
2523 *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS_FOR_TARGET" ;;
2524 esac
2525 case " $CXXFLAGS " in
2526 *" -g "* | *" -g3 "*) ;;
2527 *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS_FOR_TARGET" ;;
2528 esac
2529 fi
1c8bd6a3
PB		 2530fi
2531AC_SUBST(CXXFLAGS_FOR_TARGET)
2532
6f57bdf6
DK		 2533AC_SUBST(LDFLAGS_FOR_TARGET)
2534
e4c9c075
PB		 2535# Handle --with-headers=XXX. If the value is not "yes", the contents of
2536# the named directory are copied to $(tooldir)/sys-include.
2537if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
2538 if test x${is_cross_compiler} = xno ; then
2539 echo 1>&2 '***' --with-headers is only supported when cross compiling
2540 exit 1
2541 fi
2542 if test x"${with_headers}" != xyes ; then
c3a86da9 2543 x=${gcc_cv_tool_prefix}
1c710c3c 2544 copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
e4c9c075
PB		 2545 fi
2546fi
2547
2548# Handle --with-libs=XXX. If the value is not "yes", the contents of
2549# the name directories are copied to $(tooldir)/lib. Multiple directories
2550# are permitted.
2551if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
2552 if test x${is_cross_compiler} = xno ; then
2553 echo 1>&2 '***' --with-libs is only supported when cross compiling
2554 exit 1
2555 fi
2556 if test x"${with_libs}" != xyes ; then
2557 # Copy the libraries in reverse order, so that files in the first named
2558 # library override files in subsequent libraries.
c3a86da9 2559 x=${gcc_cv_tool_prefix}
e4c9c075 2560 for l in ${with_libs}; do
1c710c3c 2561 copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
e4c9c075
PB		 2562 done
2563 fi
2564fi
2565
d7f09764 2566# Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate.
e8b05380
PB		 2567#
2568# This is done by determining whether or not the appropriate directory
2569# is available, and by checking whether or not specific configurations
2570# have requested that this magic not happen.
2571#
2572# The command line options always override the explicit settings in
6b1786aa 2573# configure.ac, and the settings in configure.ac override this magic.
e8b05380
PB		 2574#
2575# If the default for a toolchain is to use GNU as and ld, and you don't
2576# want to do that, then you should use the --without-gnu-as and
d7f09764
DN		 2577# --without-gnu-ld options for the configure script. Similarly, if
2578# the default is to use the included zlib and you don't want to do that,
2579# you should use the --with-system-zlib option for the configure script.
e8b05380
PB		 2580
2581if test x${use_gnu_as} = x &&
2582 echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
2583 with_gnu_as=yes
2584 extra_host_args="$extra_host_args --with-gnu-as"
2585fi
2586
2587if test x${use_gnu_ld} = x &&
5afab7ad 2588 echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then
e8b05380
PB		 2589 with_gnu_ld=yes
2590 extra_host_args="$extra_host_args --with-gnu-ld"
2591fi
2592
d7f09764
DN		 2593if test x${use_included_zlib} = x &&
2594 echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then
2595 :
2596else
2597 with_system_zlib=yes
2598 extra_host_args="$extra_host_args --with-system-zlib"
2599fi
2600
e8b05380
PB		 2601# If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
2602# can detect this case.
2603
2604if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
2605 with_newlib=yes
2606 extra_host_args="$extra_host_args --with-newlib"
2607fi
2608
e4c9c075
PB		 2609# Handle ${copy_dirs}
2610set fnord ${copy_dirs}
2611shift
2612while test $# != 0 ; do
2613 if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
2614 :
2615 else
2616 echo Copying $1 to $2
2617
2618 # Use the install script to create the directory and all required
2619 # parent directories.
2620 if test -d $2 ; then
2621 :
2622 else
2623 echo >config.temp
2624 ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
2625 fi
2626
2627 # Copy the directory, assuming we have tar.
2628 # FIXME: Should we use B in the second tar? Not all systems support it.
2629 (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
2630
2631 # It is the responsibility of the user to correctly adjust all
2632 # symlinks. If somebody can figure out how to handle them correctly
2633 # here, feel free to add the code.
2634
2635 echo $1 > $2/COPIED
2636 fi
2637 shift; shift
2638done
2639
e8b05380
PB		 2640# Determine a target-dependent exec_prefix that the installed
2641# gcc will search in. Keep this list sorted by triplet, with
2642# the *-*-osname triplets last.
2643md_exec_prefix=
2644case "${target}" in
30b74385 2645 i[[34567]]86-pc-msdosdjgpp*)
e8b05380
PB		 2646 md_exec_prefix=/dev/env/DJDIR/bin
2647 ;;
e8b05380 2648 *-*-hpux* | \
e8b05380 2649 *-*-nto-qnx* | \
6de66370 2650 *-*-solaris2*)
e8b05380
PB		 2651 md_exec_prefix=/usr/ccs/bin
2652 ;;
2653esac
2654
4977bab6
ZW		 2655extra_arflags_for_target=
2656extra_nmflags_for_target=
2a726918 2657extra_ranlibflags_for_target=
671aa708 2658target_makefile_frag=/dev/null
55380b08 2659case "${target}" in
58e24147
AM		 2660 spu-*-*)
2661 target_makefile_frag="config/mt-spu"
2662 ;;
74ae587e 2663 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
4bf6c438
RS		 2664 target_makefile_frag="config/mt-sde"
2665 ;;
1ec3b87b
RS		 2666 mipsisa*-*-elfoabi*)
2667 target_makefile_frag="config/mt-mips-elfoabi"
2668 ;;
08d0963a
RS		 2669 mips*-*-*linux* | mips*-*-gnu*)
2670 target_makefile_frag="config/mt-mips-gnu"
2671 ;;
707f1839
SL		 2672 nios2-*-elf*)
2673 target_makefile_frag="config/mt-nios2-elf"
2674 ;;
76052545
EB		 2675 *-*-linux-android*)
2676 target_makefile_frag="config/mt-android"
2677 ;;
416ac4d4 2678 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
98a5bb3b 2679 target_makefile_frag="config/mt-gnu"
55380b08 2680 ;;
671aa708 2681 *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
4977bab6
ZW		 2682 # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
2683 # commands to handle both 32-bit and 64-bit objects. These flags are
2684 # harmless if we're using GNU nm or ar.
2685 extra_arflags_for_target=" -X32_64"
2686 extra_nmflags_for_target=" -B -X32_64"
55380b08 2687 ;;
c3b7d169
NN		 2688esac
2689
671aa708 2690alphaieee_frag=/dev/null
c3b7d169
NN		 2691case $target in
2692 alpha*-*-*)
2693 # This just makes sure to use the -mieee option to build target libs.
2694 # This should probably be set individually by each library.
2695 alphaieee_frag="config/mt-alphaieee"
55380b08
NN		 2696 ;;
2697esac
701afd4d 2698
55380b08
NN		 2699# If --enable-target-optspace always use -Os instead of -O2 to build
2700# the target libraries, similarly if it is not specified, use -Os
2701# on selected platforms.
671aa708 2702ospace_frag=/dev/null
55380b08
NN		 2703case "${enable_target_optspace}:${target}" in
2704 yes:*)
c3b7d169 2705 ospace_frag="config/mt-ospace"
55380b08
NN		 2706 ;;
2707 :d30v-*)
c3b7d169 2708 ospace_frag="config/mt-d30v"
55380b08 2709 ;;
d9063947 2710 :m32r-* | :d10v-* | :fr30-* | :i?86*-*-elfiamcu)
c3b7d169 2711 ospace_frag="config/mt-ospace"
55380b08
NN		 2712 ;;
2713 no:* | :*)
2714 ;;
2715 *)
2716 echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
2717 ;;
2718esac
6599da04 2719
671aa708
NN		 2720# Some systems (e.g., one of the i386-aix systems the gas testers are
2721# using) don't handle "\$" correctly, so don't use it here.
1c710c3c 2722tooldir='${exec_prefix}'/${target_noncanonical}
671aa708
NN		 2723build_tooldir=${tooldir}
2724
671aa708
NN		 2725# Create a .gdbinit file which runs the one in srcdir
2726# and tells GDB to look there for source files.
2727
2728if test -r ${srcdir}/.gdbinit ; then
2729 case ${srcdir} in
2730 .) ;;
2731 *) cat > ./.gdbinit <<EOF
2732# ${NO_EDIT}
2733dir ${srcdir}
2734dir .
2735source ${srcdir}/.gdbinit
2736EOF
2737 ;;
2738 esac
2739fi
2740
6599da04
JM		 2741# Make sure that the compiler is able to generate an executable. If it
2742# can't, we are probably in trouble. We don't care whether we can run the
2743# executable--we might be using a cross compiler--we only care whether it
2744# can be created. At this point the main configure script has set CC.
aeaa0f2f 2745we_are_ok=no
6599da04
JM		 2746echo "int main () { return 0; }" > conftest.c
2747${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
aeaa0f2f
NN		 2748if test $? = 0 ; then
2749 if test -s conftest || test -s conftest.exe ; then
2750 we_are_ok=yes
2751 fi
2752fi
2753case $we_are_ok in
2754 no)
2755 echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
2756 echo 1>&2 "*** You must set the environment variable CC to a working compiler."
2757 rm -f conftest*
2758 exit 1
2759 ;;
2760esac
6599da04
JM		 2761rm -f conftest*
2762
d89f0ad6 2763# Decide which environment variable is used to find dynamic libraries.
fe3d5b7f
NN		 2764case "${host}" in
2765 *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
111eeb6e 2766 *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
d89f0ad6 2767 *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;;
fe3d5b7f
NN		 2768 *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
2769esac
fe3d5b7f 2770
d89f0ad6
AL		 2771# On systems where the dynamic library environment variable is PATH,
2772# gcc/ will put dynamic libraries into a subdirectory to avoid adding
2773# built executables to PATH.
2774if test "$RPATH_ENVVAR" = PATH; then
2775 GCC_SHLIB_SUBDIR=/shlib
2776else
2777 GCC_SHLIB_SUBDIR=
2778fi
2779
beeda1d9
JJ		 2780# Adjust the toplevel makefile according to whether bootstrap was selected.
2781case $enable_bootstrap in
2782 yes)
2783 bootstrap_suffix=bootstrap
2784 BUILD_CONFIG=bootstrap-debug
2785 ;;
2786 no)
2787 bootstrap_suffix=no-bootstrap
2788 BUILD_CONFIG=
2789 ;;
2790esac
2791
2792AC_MSG_CHECKING(for default BUILD_CONFIG)
2793
2794AC_ARG_WITH([build-config],
2795 [AS_HELP_STRING([--with-build-config='NAME NAME2...'],
2796 [use config/NAME.mk build configuration])],
2797 [case $with_build_config in
2798 yes) with_build_config= ;;
2799 no) with_build_config= BUILD_CONFIG= ;;
2800 esac])
2801
2802if test "x${with_build_config}" != x; then
2803 BUILD_CONFIG=$with_build_config
2804else
2805 case $BUILD_CONFIG in
2806 bootstrap-debug)
2807 if echo "int f (void) { return 0; }" > conftest.c &&
2808 ${CC} -c conftest.c &&
2809 mv conftest.o conftest.o.g0 &&
2810 ${CC} -c -g conftest.c &&
2811 mv conftest.o conftest.o.g &&
2812 ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then
2813 :
2814 else
2815 BUILD_CONFIG=
2816 fi
2817 rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g
2818 ;;
2819 esac
2820fi
2821AC_MSG_RESULT($BUILD_CONFIG)
2822AC_SUBST(BUILD_CONFIG)
2823
2824# Use same top-level configure hooks in libgcc/libstdc++/libvtv.
2825AC_MSG_CHECKING([for --enable-vtable-verify])
2826AC_ARG_ENABLE(vtable-verify,
318a4e6d
MF		 2827[AS_HELP_STRING([--enable-vtable-verify],
2828 [Enable vtable verification feature])],
beeda1d9
JJ		 2829[case "$enableval" in
2830 yes) enable_vtable_verify=yes ;;
2831 no) enable_vtable_verify=no ;;
2832 *) enable_vtable_verify=no;;
2833 esac],
2834[enable_vtable_verify=no])
2835AC_MSG_RESULT($enable_vtable_verify)
2836
4977bab6
ZW		 2837# Record target_configdirs and the configure arguments for target and
2838# build configuration in Makefile.
2839target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
23f6b2f9 2840build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
9e1c8fc1 2841bootstrap_fixincludes=no
4977bab6 2842
ad1e5170
JR		 2843# If we are building libgomp, bootstrap it.
2844if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then
2845 bootstrap_target_libs=${bootstrap_target_libs}target-libgomp,
2846fi
2847
beeda1d9
JJ		 2848# If we are building libsanitizer and $BUILD_CONFIG contains bootstrap-asan
2849# or bootstrap-ubsan, bootstrap it.
2850if echo " ${target_configdirs} " | grep " libsanitizer " > /dev/null 2>&1; then
2851 case "$BUILD_CONFIG" in
170e618e 2852 *bootstrap-hwasan* | *bootstrap-asan* | *bootstrap-ubsan* )
beeda1d9 2853 bootstrap_target_libs=${bootstrap_target_libs}target-libsanitizer,
9e1c8fc1 2854 bootstrap_fixincludes=yes
beeda1d9
JJ		 2855 ;;
2856 esac
ac8701fe
L		 2857fi
2858
beeda1d9
JJ		 2859# If we are building libvtv and --enable-vtable-verify, bootstrap it.
2860if echo " ${target_configdirs} " | grep " libvtv " > /dev/null 2>&1 &&
2861 test "$enable_vtable_verify" != no; then
2077db1b
CT		 2862 bootstrap_target_libs=${bootstrap_target_libs}target-libvtv,
2863fi
2864
5fee5ec3
IB		 2865# If we are building libatomic and the list of enabled languages includes the
2866# D frontend, bootstrap it.
2867if echo " ${target_configdirs} " | grep " libatomic " > /dev/null 2>&1; then
2868 case ,${enable_languages}, in
2869 *,d,*)
2870 bootstrap_target_libs=${bootstrap_target_libs}target-libatomic,
2871 ;;
2872 esac
2873fi
2874
4977bab6
ZW		 2875# Determine whether gdb needs tk/tcl or not.
2876# Use 'maybe' since enable_gdbtk might be true even if tk isn't available
2877# and in that case we want gdb to be built without tk. Ugh!
2878# In fact I believe gdb is the *only* package directly dependent on tk,
2879# so we should be able to put the 'maybe's in unconditionally and
2880# leave out the maybe dependencies when enable_gdbtk is false. I'm not
2881# 100% sure that that's safe though.
e914a571 2882
b4f96efe 2883gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
4977bab6
ZW		 2884case "$enable_gdbtk" in
2885 no)
2886 GDB_TK="" ;;
e914a571
AC		 2887 yes)
2888 GDB_TK="${gdb_tk}" ;;
4977bab6 2889 *)
e914a571
AC		 2890 # Only add the dependency on gdbtk when GDBtk is part of the gdb
2891 # distro. Eventually someone will fix this and move Insight, nee
2892 # gdbtk to a separate directory.
2893 if test -d ${srcdir}/gdb/gdbtk ; then
2894 GDB_TK="${gdb_tk}"
2895 else
2896 GDB_TK=""
2897 fi
2898 ;;
4977bab6 2899esac
ef9db8d5
DJ		 2900CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
2901INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
4977bab6 2902
f9d09df0
TT		 2903# gdb and gdbserver depend on gnulib and gdbsupport, but as nothing
2904# else does, only include them if one of these is built. The Makefile
2905# provides the ordering, so it's enough here to add to the list.
2906case " ${configdirs} " in
2907 *\ gdb\ *)
2908 configdirs="${configdirs} gnulib gdbsupport"
2909 ;;
2910 *\ gdbserver\ *)
2911 configdirs="${configdirs} gnulib gdbsupport"
2912 ;;
f14c9bd4
MF		 2913 *\ sim\ *)
2914 configdirs="${configdirs} gnulib"
2915 ;;
f9d09df0 2916esac
98e5be21 2917
60975492 2918# Strip out unwanted targets.
8b87bb96
NN		 2919
2920# While at that, we remove Makefiles if we were started for recursive
2921# configuration, so that the top-level Makefile reconfigures them,
2922# like we used to do when configure itself was recursive.
8b87bb96 2923
3e54529c
RW		 2924# Loop over modules. We used to use the "$extrasub" feature from Autoconf
2925# but now we're fixing up the Makefile ourselves with the additional
2926# commands passed to AC_CONFIG_FILES. Use separate variables
2927# extrasub-{build,host,target} not because there is any reason to split
2928# the substitutions up that way, but only to remain below the limit of
2929# 99 commands in a script, for HP-UX sed.
da34ca3f
AO		 2930
2931# Do not nest @if/@endif or @unless/@endunless pairs, because
2932# configure will not warn you at all.
8b87bb96 2933
79cd2b23
RW		 2934case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in
2935 yes:yes:*\ gold\ *:*,c++,*) ;;
2936 yes:yes:*\ gold\ *:*)
2937 AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages])
2938 ;;
2939esac
2940
3e54529c 2941extrasub_build=
23f6b2f9 2942for module in ${build_configdirs} ; do
8b87bb96
NN		 2943 if test -z "${no_recursion}" \
2944 && test -f ${build_subdir}/${module}/Makefile; then
2945 echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
2946 rm -f ${build_subdir}/${module}/Makefile
2947 fi
3e54529c 2948 extrasub_build="$extrasub_build
60975492 2949/^@if build-$module\$/d
5607edfd 2950/^@endif build-$module\$/d
da34ca3f 2951/^@unless build-$module\$/,/^@endunless build-$module\$/d
5607edfd 2952/^@if build-$module-$bootstrap_suffix\$/d
da34ca3f
AO		 2953/^@endif build-$module-$bootstrap_suffix\$/d
2954/^@unless build-$module-$bootstrap_suffix\$/,/^@endunless build-$module-$bootstrap_suffix\$/d"
8b87bb96 2955done
3e54529c 2956extrasub_host=
8b87bb96 2957for module in ${configdirs} ; do
a6fbc1e2 2958 if test -z "${no_recursion}"; then
f063a9ed 2959 for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
a6fbc1e2
AS		 2960 if test -f ${file}; then
2961 echo 1>&2 "*** removing ${file} to force reconfigure"
2962 rm -f ${file}
2963 fi
2964 done
8b87bb96 2965 fi
9e1c8fc1
JJ		 2966 case ${module},${bootstrap_fixincludes} in
2967 fixincludes,no) host_bootstrap_suffix=no-bootstrap ;;
2968 *) host_bootstrap_suffix=$bootstrap_suffix ;;
2969 esac
3e54529c 2970 extrasub_host="$extrasub_host
60975492 2971/^@if $module\$/d
5607edfd 2972/^@endif $module\$/d
da34ca3f 2973/^@unless $module\$/,/^@endunless $module\$/d
9e1c8fc1 2974/^@if $module-$host_bootstrap_suffix\$/d
da34ca3f
AO		 2975/^@endif $module-$host_bootstrap_suffix\$/d
2976/^@unless $module-$host_bootstrap_suffix\$/,/^@endunless $module-$host_bootstrap_suffix\$/d"
8b87bb96 2977done
3e54529c 2978extrasub_target=
8b87bb96
NN		 2979for module in ${target_configdirs} ; do
2980 if test -z "${no_recursion}" \
2981 && test -f ${target_subdir}/${module}/Makefile; then
2982 echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
2983 rm -f ${target_subdir}/${module}/Makefile
2984 fi
00020c16
ILT		 2985
2986 # We only bootstrap target libraries listed in bootstrap_target_libs.
2987 case $bootstrap_target_libs in
2988 *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;;
2989 *) target_bootstrap_suffix=no-bootstrap ;;
2990 esac
2991
3e54529c 2992 extrasub_target="$extrasub_target
60975492 2993/^@if target-$module\$/d
5607edfd 2994/^@endif target-$module\$/d
da34ca3f 2995/^@unless target-$module\$/,/^@endunless target-$module\$/d
00020c16 2996/^@if target-$module-$target_bootstrap_suffix\$/d
da34ca3f
AO		 2997/^@endif target-$module-$target_bootstrap_suffix\$/d
2998/^@unless target-$module-$target_bootstrap_suffix\$/,/^@endunless target-$module-$target_bootstrap_suffix\$/d"
4977bab6 2999done
f516a7da 3000
3e54529c
RW		 3001# Do the final fixup along with target modules.
3002extrasub_target="$extrasub_target
da34ca3f
AO		 3003/^@if /,/^@endif /d
3004/^@unless /d
3005/^@endunless /d"
4977bab6 3006
4a5e71f2
L		 3007if test "$enable_pgo_build" != "no"; then
3008 extrasub_build="$extrasub_build
3009/^@if pgo-build\$/d
3010/^@endif pgo-build\$/d"
3011fi
3012
4977bab6
ZW		 3013# Create the serialization dependencies. This uses a temporary file.
3014
ade82b16 3015AC_ARG_ENABLE([serial-configure],
33e39b66
AS		 3016[AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]],
3017 [force sequential configuration of
3018 sub-packages for the host, target or build
3019 machine, or all sub-packages])])
bf1d3e81
NN		 3020
3021case ${enable_serial_configure} in
3022 yes)
3023 enable_serial_build_configure=yes
3024 enable_serial_host_configure=yes
3025 enable_serial_target_configure=yes
3026 ;;
3027esac
ade82b16 3028
4977bab6
ZW		 3029# These force 'configure's to be done one at a time, to avoid problems
3030# with contention over a shared config.cache.
3031rm -f serdep.tmp
ade82b16 3032echo '# serdep.tmp' > serdep.tmp
4977bab6 3033olditem=
bf1d3e81 3034test "x${enable_serial_build_configure}" = xyes &&
4977bab6
ZW		 3035for item in ${build_configdirs} ; do
3036 case ${olditem} in
3037 "") ;;
ade82b16 3038 *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
4977bab6
ZW		 3039 esac
3040 olditem=${item}
3041done
3042olditem=
bf1d3e81 3043test "x${enable_serial_host_configure}" = xyes &&
4977bab6
ZW		 3044for item in ${configdirs} ; do
3045 case ${olditem} in
3046 "") ;;
ade82b16 3047 *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
4977bab6
ZW		 3048 esac
3049 olditem=${item}
3050done
3051olditem=
bf1d3e81 3052test "x${enable_serial_target_configure}" = xyes &&
4977bab6
ZW		 3053for item in ${target_configdirs} ; do
3054 case ${olditem} in
3055 "") ;;
ade82b16 3056 *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
4977bab6
ZW		 3057 esac
3058 olditem=${item}
3059done
671aa708
NN		 3060serialization_dependencies=serdep.tmp
3061AC_SUBST_FILE(serialization_dependencies)
fe3d5b7f 3062
ade82b16 3063# Base args. Strip norecursion, cache-file, srcdir, host, build,
1c710c3c 3064# target, nonopt, and variable assignments. These are the ones we
f1a036e4
NC		 3065# might not want to pass down to subconfigures. The exception being
3066# --cache-file=/dev/null, which is used to turn off the use of cache
3067# files altogether, and which should be passed on to subconfigures.
3068# Also strip program-prefix, program-suffix, and program-transform-name,
3069# so that we can pass down a consistent program-transform-name.
1c710c3c 3070baseargs=
29a63921 3071tbaseargs=
1c710c3c
DJ		 3072keep_next=no
3073skip_next=no
3074eval "set -- $ac_configure_args"
44bfc3ac
DJ		 3075for ac_arg
3076do
1c710c3c
DJ		 3077 if test X"$skip_next" = X"yes"; then
3078 skip_next=no
3079 continue
3080 fi
3081 if test X"$keep_next" = X"yes"; then
3082 case $ac_arg in
3083 *\'*)
3084 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
3085 esac
3086 baseargs="$baseargs '$ac_arg'"
29a63921 3087 tbaseargs="$tbaseargs '$ac_arg'"
1c710c3c
DJ		 3088 keep_next=no
3089 continue
3090 fi
3091
3092 # Handle separated arguments. Based on the logic generated by
3093 # autoconf 2.59.
3094 case $ac_arg in
3095 *=* | --config-cache | -C | -disable-* | --disable-* \
3096 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
3097 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
3098 | -with-* | --with-* | -without-* | --without-* | --x)
3099 separate_arg=no
3100 ;;
3101 -*)
3102 separate_arg=yes
3103 ;;
3104 *)
3105 separate_arg=no
3106 ;;
3107 esac
3108
29a63921
AO		 3109 skip_targ=no
3110 case $ac_arg in
3111changequote(,)
3112 --with-* | --without-*)
3113 libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'`
3114
3115 case $libopt in
3116 *[-_]include)
3117 lib=`echo "$libopt" | sed 's,[-_]include$,,'`
3118 ;;
3119 *[-_]lib)
3120 lib=`echo "$libopt" | sed 's,[-_]lib$,,'`
3121 ;;
3122 *)
3123 lib=$libopt
3124 ;;
3125 esac
3126changequote([,])
3127
3128 case $lib in
4a9bb2aa 3129 mpc | mpfr | gmp | isl)
29a63921
AO		 3130 # If we're processing --with-$lib, --with-$lib-include or
3131 # --with-$lib-lib, for one of the libs above, and target is
3132 # different from host, don't pass the current argument to any
3133 # target library's configure.
3134 if test x$is_cross_compiler = xyes; then
3135 skip_targ=yes
3136 fi
3137 ;;
3138 esac
3139 ;;
3140 esac
3141
1c710c3c 3142 case "$ac_arg" in
f1a036e4
NC		 3143 --cache-file=/dev/null | \
3144 -cache-file=/dev/null )
3145 # Handled here to avoid the test to skip args below.
3146 baseargs="$baseargs '$ac_arg'"
29a63921 3147 tbaseargs="$tbaseargs '$ac_arg'"
f1a036e4
NC		 3148 # Assert: $separate_arg should always be no.
3149 keep_next=$separate_arg
3150 ;;
1c710c3c
DJ		 3151 --no*)
3152 continue
3153 ;;
3154 --c* | \
3155 --sr* | \
3156 --ho* | \
3157 --bu* | \
3158 --t* | \
3159 --program-* | \
3160 -cache_file* | \
3161 -srcdir* | \
3162 -host* | \
3163 -build* | \
3164 -target* | \
3165 -program-prefix* | \
3166 -program-suffix* | \
3167 -program-transform-name* )
3168 skip_next=$separate_arg
3169 continue
3170 ;;
3171 -*)
3172 # An option. Add it.
3173 case $ac_arg in
3174 *\'*)
3175 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
3176 esac
3177 baseargs="$baseargs '$ac_arg'"
29a63921
AO		 3178 if test X"$skip_targ" = Xno; then
3179 tbaseargs="$tbaseargs '$ac_arg'"
3180 fi
1c710c3c
DJ		 3181 keep_next=$separate_arg
3182 ;;
3183 *)
3184 # Either a variable assignment, or a nonopt (triplet). Don't
3185 # pass it down; let the Makefile handle this.
3186 continue
3187 ;;
3188 esac
3189done
3190# Remove the initial space we just introduced and, as these will be
3191# expanded by make, quote '$'.
3192baseargs=`echo "x$baseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
6599da04 3193
43bb47c2
DJ		 3194# Add in --program-transform-name, after --program-prefix and
3195# --program-suffix have been applied to it. Autoconf has already
3196# doubled dollar signs and backslashes in program_transform_name; we want
3197# the backslashes un-doubled, and then the entire thing wrapped in single
3198# quotes, because this will be expanded first by make and then by the shell.
3199# Also, because we want to override the logic in subdir configure scripts to
3200# choose program_transform_name, replace any s,x,x, with s,y,y,.
3201sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
3202${program_transform_name}
3203EOF_SED
3204gcc_transform_name=`cat conftestsed.out`
3205rm -f conftestsed.out
3206baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
29a63921 3207tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'"
d9acb717
RW		 3208if test "$silent" = yes; then
3209 baseargs="$baseargs --silent"
29a63921 3210 tbaseargs="$tbaseargs --silent"
d9acb717 3211fi
0115d4a3 3212baseargs="$baseargs --disable-option-checking"
29a63921 3213tbaseargs="$tbaseargs --disable-option-checking"
43bb47c2 3214
ffedf511
RW		 3215# Record and document user additions to sub configure arguments.
3216AC_ARG_VAR([build_configargs],
3217 [additional configure arguments for build directories])
3218AC_ARG_VAR([host_configargs],
3219 [additional configure arguments for host directories])
3220AC_ARG_VAR([target_configargs],
3221 [additional configure arguments for target directories])
3222
e490616e
ZW		 3223# For the build-side libraries, we just need to pretend we're native,
3224# and not use the same cache file. Multilibs are neither needed nor
3d96b0d0
HPN		 3225# desired. We can't even use the same cache file for all build-side
3226# libraries, as they're compiled differently; some with C, some with
3227# C++ or with different feature-enabling options.
3228build_configargs="$build_configargs --cache-file=./config.cache ${baseargs}"
e254d6b5 3229
4977bab6
ZW		 3230# For host modules, accept cache file option, or specification as blank.
3231case "${cache_file}" in
3232"") # empty
3233 cache_file_option="" ;;
671aa708 3234/* | [[A-Za-z]]:[[\\/]]* ) # absolute path
4977bab6
ZW		 3235 cache_file_option="--cache-file=${cache_file}" ;;
3236*) # relative path
3237 cache_file_option="--cache-file=../${cache_file}" ;;
3238esac
3239
09438bde
NN		 3240# Host dirs don't like to share a cache file either, horribly enough.
3241# This seems to be due to autoconf 2.5x stupidity.
ffedf511 3242host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${baseargs}"
4977bab6 3243
29a63921 3244target_configargs="$target_configargs ${tbaseargs}"
e490616e 3245
6599da04
JM		 3246# Passing a --with-cross-host argument lets the target libraries know
3247# whether they are being built with a cross-compiler or being built
3248# native. However, it would be better to use other mechanisms to make the
3249# sorts of decisions they want to make on this basis. Please consider
3250# this option to be deprecated. FIXME.
aeaa0f2f 3251if test x${is_cross_compiler} = xyes ; then
1c710c3c 3252 target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
6599da04
JM		 3253fi
3254
79e0604d
FXC		 3255# Special user-friendly check for native x86_64-linux build, if
3256# multilib is not explicitly enabled.
3257case "$target:$have_compiler:$host:$target:$enable_multilib" in
3258 x86_64-*linux*:yes:$build:$build:)
e640447c 3259 # Make sure we have a development environment that handles 32-bit
79e0604d
FXC		 3260 dev64=no
3261 echo "int main () { return 0; }" > conftest.c
3262 ${CC} -m32 -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
3263 if test $? = 0 ; then
3264 if test -s conftest || test -s conftest.exe ; then
3265 dev64=yes
3266 fi
3267 fi
3268 rm -f conftest*
3269 if test x${dev64} != xyes ; then
e640447c 3270 AC_MSG_ERROR([I suspect your system does not have 32-bit development libraries (libc and headers). If you have them, rerun configure with --enable-multilib. If you do not have them, and want to build a 64-bit-only compiler, rerun configure with --disable-multilib.])
79e0604d
FXC		 3271 fi
3272 ;;
3273esac
3274
dc683a3f
RW		 3275# Default to --enable-multilib.
3276if test x${enable_multilib} = x ; then
3fedb745 3277 target_configargs="--enable-multilib ${target_configargs}"
dc683a3f 3278fi
6599da04 3279
5d4a5ee6
JL		 3280# Pass --with-newlib if appropriate. Note that target_configdirs has
3281# changed from the earlier setting of with_newlib.
aeaa0f2f 3282if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
3fedb745 3283 target_configargs="--with-newlib ${target_configargs}"
5d4a5ee6
JL		 3284fi
3285
6b9eb62c
NN		 3286# Different target subdirs use different values of certain variables
3287# (notably CXX). Worse, multilibs use *lots* of different values.
3288# Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
3289# it doesn't automatically accept command-line overrides of them.
3290# This means it's not safe for target subdirs to share a cache file,
3291# which is disgusting, but there you have it. Hopefully this can be
3292# fixed in future. It's still worthwhile to use a cache file for each
3293# directory. I think.
3294
bebcd931
MS		 3295# Pass the appropriate --build, --host, --target and --cache-file arguments.
3296# We need to pass --target, as newer autoconf's requires consistency
3297# for target_alias and gcc doesn't manage it consistently.
e69bf64b 3298target_configargs="--cache-file=./config.cache ${target_configargs}"
e490616e 3299
b87487b6 3300FLAGS_FOR_TARGET=
bb654703 3301case " $target_configdirs " in
7965440a 3302 *" newlib "*)
3fedb745 3303 case " $target_configargs " in
7965440a 3304 *" --with-newlib "*)
b87487b6 3305 case "$target" in
5d571eaa 3306 *-cygwin*)
443e6238 3307 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -isystem $$s/winsup/cygwin/include'
5d571eaa 3308 ;;
b87487b6
AO		 3309 esac
3310
afd7db25 3311 # If we're not building GCC, don't discard standard headers.
ef40bc65 3312 if test -d ${srcdir}/gcc; then
d4eb109c 3313 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
afd7db25
AO		 3314
3315 if test "${build}" != "${host}"; then
3316 # On Canadian crosses, CC_FOR_TARGET will have already been set
3317 # by `configure', so we won't have an opportunity to add -Bgcc/
3318 # to it. This is right: we don't want to search that directory
3319 # for binaries, but we want the header files in there, so add
3320 # them explicitly.
0463992b 3321 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed'
afd7db25
AO		 3322
3323 # Someone might think of using the pre-installed headers on
3324 # Canadian crosses, in case the installed compiler is not fully
3325 # compatible with the compiler being built. In this case, it
3326 # would be better to flag an error than risking having
3327 # incompatible object files being constructed. We can't
3328 # guarantee that an error will be flagged, but let's hope the
3329 # compiler will do it, when presented with incompatible header
3330 # files.
3331 fi
d4eb109c
AO		 3332 fi
3333
ab50d72b 3334 case "${target}-${is_cross_compiler}" in
f2a0e225 3335 i[[3456789]]86-*-linux*-no)
ab50d72b
DD		 3336 # Here host == target, so we don't need to build gcc,
3337 # so we don't want to discard standard headers.
3338 FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
ab50d72b
DD		 3339 ;;
3340 *)
3341 # If we're building newlib, use its generic headers last, but search
3342 # for any libc-related directories first (so make it the last -B
3343 # switch).
3344 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
c03353e2
RIL		 3345
3346 # If we're building libgloss, find the startup file, simulator library
3347 # and linker script.
3348 case " $target_configdirs " in
3349 *" libgloss "*)
3350 # Look for startup file, simulator library and maybe linker script.
3351 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir"
3352 # Look for libnosys.a in case the target needs it.
3353 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
3354 # Most targets have the linker script in the source directory.
3355 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir"
3356 ;;
3357 esac
ab50d72b
DD		 3358 ;;
3359 esac
b87487b6 3360 ;;
7965440a
AO		 3361 esac
3362 ;;
b87487b6 3363esac
5d571eaa 3364
b91f0a41 3365case "$target" in
5d571eaa
OS		 3366 x86_64-*mingw* | *-w64-mingw*)
3367 # MinGW-w64 does not use newlib, nor does it use winsup. It may,
3368 # however, use a symlink named 'mingw' in ${prefix} .
3369 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include'
3370 ;;
3371 *-mingw*)
3372 # MinGW can't be handled as Cygwin above since it does not use newlib.
3373 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/mingw -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/mingw/include -isystem $$s/winsup/w32api/include'
3374 ;;
b91f0a41 3375esac
d4eb109c 3376
6691a79e
ME		 3377# Allow the user to override the flags for
3378# our build compiler if desired.
f019adc1
MF		 3379if test x"${build}" = x"${host}" ; then
3380 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
84401ce5 3381 CPPFLAGS_FOR_BUILD=${CPPFLAGS_FOR_BUILD-${CPPFLAGS}}
f019adc1
MF		 3382 CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}}
3383 LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}}
3384fi
6691a79e 3385
d4eb109c
AO		 3386# On Canadian crosses, we'll be searching the right directories for
3387# the previously-installed cross compiler, so don't bother to add
3388# flags for directories within the install tree of the compiler
3389# being built; programs in there won't even run.
ef40bc65 3390if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
b87487b6 3391 # Search for pre-installed headers if nothing else fits.
9124bc53 3392 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
b87487b6 3393fi
d4eb109c 3394
bb654703 3395if test "x${use_gnu_ld}" = x &&
55380b08 3396 echo " ${configdirs} " | grep " ld " > /dev/null ; then
b87487b6 3397 # Arrange for us to find uninstalled linker scripts.
215c351a 3398 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
b87487b6
AO		 3399fi
3400
e88a2c09
DD		 3401# Search for other target-specific linker scripts and such.
3402case "${target}" in
3e19841a
PB		 3403 mep*)
3404 FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
3405 ;;
9b8ffbb8
OH		 3406 # The VxWorks support for shared libraries is getting in
3407 # incrementally. Make sure it doesn't get activated implicitly:
3408 *vxworks*)
3409 if test "${enable_shared-unset}" = unset ; then
3410 enable_shared=no
3411 # So the build of libraries knows ...
3412 target_configargs="${target_configargs} --disable-shared"
3413 # So gcc knows ...
3414 host_configargs="${host_configargs} --disable-shared"
3415 fi
3416 ;;
e88a2c09
DD		 3417esac
3418
671aa708 3419# Makefile fragments.
7b61653a
PE		 3420for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
3421do
3422 eval fragval=\$$frag
3423 if test $fragval != /dev/null; then
3424 eval $frag=${srcdir}/$fragval
3425 fi
3426done
671aa708
NN		 3427AC_SUBST_FILE(host_makefile_frag)
3428AC_SUBST_FILE(target_makefile_frag)
3429AC_SUBST_FILE(alphaieee_frag)
3430AC_SUBST_FILE(ospace_frag)
3431
3432# Miscellanea: directories, flags, etc.
671aa708 3433AC_SUBST(RPATH_ENVVAR)
d89f0ad6 3434AC_SUBST(GCC_SHLIB_SUBDIR)
671aa708
NN		 3435AC_SUBST(tooldir)
3436AC_SUBST(build_tooldir)
ef9db8d5 3437AC_SUBST(CONFIGURE_GDB_TK)
671aa708 3438AC_SUBST(GDB_TK)
ef9db8d5 3439AC_SUBST(INSTALL_GDB_TK)
671aa708
NN		 3440
3441# Build module lists & subconfigure args.
671aa708 3442AC_SUBST(build_configargs)
23f6b2f9 3443AC_SUBST(build_configdirs)
671aa708
NN		 3444
3445# Host module lists & subconfigure args.
3446AC_SUBST(host_configargs)
3447AC_SUBST(configdirs)
aae29963 3448AC_SUBST(target_configdirs)
671aa708
NN		 3449
3450# Target module lists & subconfigure args.
671aa708 3451AC_SUBST(target_configargs)
ee2312f3 3452
671aa708
NN		 3453
3454# Build tools.
0999159b
PB		 3455AC_SUBST(AR_FOR_BUILD)
3456AC_SUBST(AS_FOR_BUILD)
671aa708 3457AC_SUBST(CC_FOR_BUILD)
0999159b 3458AC_SUBST(CFLAGS_FOR_BUILD)
84401ce5
RP		 3459AC_SUBST(CPP_FOR_BUILD)
3460AC_SUBST(CPPFLAGS_FOR_BUILD)
0999159b
PB		 3461AC_SUBST(CXXFLAGS_FOR_BUILD)
3462AC_SUBST(CXX_FOR_BUILD)
3463AC_SUBST(DLLTOOL_FOR_BUILD)
3b5e8ee4 3464AC_SUBST(DSYMUTIL_FOR_BUILD)
0999159b 3465AC_SUBST(GFORTRAN_FOR_BUILD)
632e2a07 3466AC_SUBST(GOC_FOR_BUILD)
b4c522fa 3467AC_SUBST(GDC_FOR_BUILD)
0999159b
PB		 3468AC_SUBST(LDFLAGS_FOR_BUILD)
3469AC_SUBST(LD_FOR_BUILD)
3470AC_SUBST(NM_FOR_BUILD)
3471AC_SUBST(RANLIB_FOR_BUILD)
3472AC_SUBST(WINDMC_FOR_BUILD)
3473AC_SUBST(WINDRES_FOR_BUILD)
671aa708 3474
2abefe3d
PB		 3475# Generate default definitions for YACC, M4, LEX and other programs that run
3476# on the build machine. These are used if the Makefile can't locate these
3477# programs in objdir.
3478MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
3479
3480AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
3481case " $build_configdirs " in
3482 *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
2abefe3d
PB		 3483esac
3484
3485AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
3486case " $build_configdirs " in
3487 *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
3488esac
3489
3490AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
3491case " $build_configdirs " in
3492 *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
3493esac
3494
3495AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
3496case " $build_configdirs " in
3497 *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3498 *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
3499esac
3500
3501AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
3502case " $build_configdirs " in
3503 *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3504esac
3505
3506AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
3507case " $build_configdirs " in
3508 *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
3509 *)
3510changequote(,)
d18ff35a 3511 # For an installed makeinfo, we require it to be from texinfo 4.7 or
2abefe3d
PB		 3512 # higher, else we use the "missing" dummy.
3513 if ${MAKEINFO} --version \
d18ff35a 3514 | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then
2abefe3d
PB		 3515 :
3516 else
3517 MAKEINFO="$MISSING makeinfo"
3518 fi
3519 ;;
3520changequote([,])
3521esac
3522
3523# FIXME: expect and dejagnu may become build tools?
3524
3525AC_CHECK_PROGS(EXPECT, expect, expect)
3526case " $configdirs " in
3527 *" expect "*)
3528 test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
3529 ;;
3530esac
3531
3532AC_CHECK_PROGS(RUNTEST, runtest, runtest)
3533case " $configdirs " in
3534 *" dejagnu "*)
c394e891 3535 test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
2abefe3d
PB		 3536 ;;
3537esac
3538
4e3dcf20 3539
671aa708 3540# Host tools.
2693c0b0
PB		 3541NCN_STRICT_CHECK_TOOLS(AR, ar)
3542NCN_STRICT_CHECK_TOOLS(AS, as)
3543NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
3b5e8ee4 3544NCN_STRICT_CHECK_TOOLS(DSYMUTIL, dsymutil)
2693c0b0 3545NCN_STRICT_CHECK_TOOLS(LD, ld)
2abefe3d 3546NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
2693c0b0 3547NCN_STRICT_CHECK_TOOLS(NM, nm)
8927b7c0
RO		 3548NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true)
3549NCN_STRICT_CHECK_TOOLS(STRIP, strip, true)
2693c0b0 3550NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
901119ae 3551NCN_STRICT_CHECK_TOOLS(WINDMC, windmc)
2693c0b0
PB		 3552NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
3553NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
e4a9a572 3554NCN_STRICT_CHECK_TOOLS(OTOOL, otool)
e7a82751 3555NCN_STRICT_CHECK_TOOLS(READELF, readelf)
671aa708
NN		 3556AC_SUBST(CC)
3557AC_SUBST(CXX)
3558AC_SUBST(CFLAGS)
3559AC_SUBST(CXXFLAGS)
5fee5ec3
IB		 3560AC_SUBST(GDC)
3561AC_SUBST(GDCFLAGS)
671aa708 3562
2abefe3d 3563# Target tools.
e8b05380 3564AC_ARG_WITH([build-time-tools],
33e39b66
AS		 3565 [AS_HELP_STRING([--with-build-time-tools=PATH],
3566 [use given path to find target tools during the build])],
e8b05380
PB		 3567 [case x"$withval" in
3568 x/*) ;;
3569 *)
3570 with_build_time_tools=
3571 AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
3572 ;;
3573 esac],
3574 [with_build_time_tools=])
3575
2693c0b0
PB		 3576NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
3577NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
2693c0b0 3578NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
2693c0b0 3579NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
632e2a07 3580NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo)
b4c522fa 3581NCN_STRICT_CHECK_TARGET_TOOLS(GDC_FOR_TARGET, gdc)
e8b05380
PB		 3582
3583ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
3584ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
3585ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
3b5e8ee4 3586ACX_CHECK_INSTALLED_TARGET_TOOL(DSYMUTIL_FOR_TARGET, dsymutil)
e8b05380
PB		 3587ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
3588ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
3589ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
9bccfdf5 3590ACX_CHECK_INSTALLED_TARGET_TOOL(OBJCOPY_FOR_TARGET, objcopy)
e8b05380 3591ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
e4a9a572 3592ACX_CHECK_INSTALLED_TARGET_TOOL(OTOOL_FOR_TARGET, otool)
8927b7c0 3593ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib)
e7a82751 3594ACX_CHECK_INSTALLED_TARGET_TOOL(READELF_FOR_TARGET, readelf)
e8b05380
PB		 3595ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
3596ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
901119ae 3597ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc)
4de997d1 3598
2abefe3d
PB		 3599RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
3600
3601GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
3602GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
3603GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
b3f122e0 3604dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS
2abefe3d 3605GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
2077db1b 3606 [gcc/xg++ -B$$r/$(HOST_SUBDIR)/gcc/ -nostdinc++ `if test -f $$r/$(TARGET_SUBDIR)/libstdc++-v3/scripts/testsuite_flags; then $(SHELL) $$r/$(TARGET_SUBDIR)/libstdc++-v3/scripts/testsuite_flags --build-includes; else echo -funconfigured-libstdc++-v3 ; fi` -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/libsupc++/.libs],
2abefe3d
PB		 3607 c++)
3608GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
2077db1b 3609 [gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc -nostdinc++ -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/libsupc++/.libs],
2abefe3d
PB		 3610 c++)
3611GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
3b5e8ee4 3612GCC_TARGET_TOOL(dsymutil, DSYMUTIL_FOR_TARGET, DSYMUTIL)
2abefe3d 3613GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
2abefe3d
PB		 3614GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
3615 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
632e2a07
ILT		 3616GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC,
3617 [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go)
b4c522fa
IB		 3618GCC_TARGET_TOOL(gdc, GDC_FOR_TARGET, GDC,
3619 [gcc/gdc -B$$r/$(HOST_SUBDIR)/gcc/], d)
2abefe3d
PB		 3620GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
3621GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
3622GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
ec8fd1c0 3623GCC_TARGET_TOOL(objcopy, OBJCOPY_FOR_TARGET, OBJCOPY, [binutils/objcopy])
2abefe3d 3624GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
e4a9a572 3625GCC_TARGET_TOOL(otool, OTOOL_FOR_TARGET, OTOOL)
2abefe3d 3626GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
e7a82751 3627GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf])
455c8f48 3628GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new])
2abefe3d 3629GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
901119ae 3630GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc])
4de997d1 3631
2abefe3d 3632AC_SUBST(FLAGS_FOR_TARGET)
4de997d1 3633AC_SUBST(RAW_CXX_FOR_TARGET)
be912515 3634
671aa708
NN		 3635# Certain tools may need extra flags.
3636AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
3637RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
3638NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
6599da04 3639
2abefe3d
PB		 3640# When building target libraries, except in a Canadian cross, we use
3641# the same toolchain as the compiler we just built.
3642COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
3643COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
3644COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
3645if test $host = $build; then
3646 case " $configdirs " in
3647 *" gcc "*)
3648 COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
3649 COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
3650 COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
3651 ;;
3652 esac
3653fi
3654
3655AC_SUBST(COMPILER_AS_FOR_TARGET)
3656AC_SUBST(COMPILER_LD_FOR_TARGET)
3657AC_SUBST(COMPILER_NM_FOR_TARGET)
3658
ee03dc5e
AO		 3659AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3660AC_ARG_ENABLE(maintainer-mode,
33e39b66
AS		 3661[AS_HELP_STRING([--enable-maintainer-mode],
3662 [enable make rules and dependencies not useful
3663 (and sometimes confusing) to the casual installer])],
ee03dc5e
AO		 3664 USE_MAINTAINER_MODE=$enableval,
3665 USE_MAINTAINER_MODE=no)
3666AC_MSG_RESULT($USE_MAINTAINER_MODE)
3667AC_SUBST(MAINTAINER_MODE_TRUE)
3668AC_SUBST(MAINTAINER_MODE_FALSE)
3669if test "$USE_MAINTAINER_MODE" = yes; then
3670 MAINTAINER_MODE_TRUE=
3671 MAINTAINER_MODE_FALSE='#'
3672else
3673 MAINTAINER_MODE_TRUE='#'
3674 MAINTAINER_MODE_FALSE=
3675fi
3676MAINT=$MAINTAINER_MODE_TRUE
3677AC_SUBST(MAINT)dnl
3678
2805b53a
NN		 3679# ---------------------
3680# GCC bootstrap support
3681# ---------------------
3682
3683# Stage specific cflags for build.
3684stage1_cflags="-g"
3685case $build in
3686 vax-*-*)
3687 case ${GCC} in
3688 yes) stage1_cflags="-g -Wa,-J" ;;
3689 *) stage1_cflags="-g -J" ;;
3690 esac ;;
2805b53a 3691esac
0b50988a 3692
2805b53a
NN		 3693AC_SUBST(stage1_cflags)
3694
8efea775
PB		 3695# Enable --enable-checking in stage1 of the compiler.
3696AC_ARG_ENABLE(stage1-checking,
33e39b66
AS		 3697[AS_HELP_STRING([[--enable-stage1-checking[=all]]],
3698 [choose additional checking for stage1 of the compiler])],
8efea775 3699[stage1_checking=--enable-checking=${enable_stage1_checking}],
e643dc23 3700[if test "x$enable_checking" = xno || test "x$enable_checking" = x; then
c10b5ea0
JJ		 3701 # For --disable-checking or implicit --enable-checking=release, avoid
3702 # setting --enable-checking=gc in the default stage1 checking for LTO
3703 # bootstraps. See PR62077.
c10b5ea0
JJ		 3704 case $BUILD_CONFIG in
3705 *lto*)
7db11a5a
JJ		 3706 stage1_checking=--enable-checking=release,misc,gimple,rtlflag,tree,types;;
3707 *)
3708 stage1_checking=--enable-checking=yes,types;;
c10b5ea0 3709 esac
7db11a5a
JJ		 3710 if test "x$enable_checking" = x && \
3711 test -d ${srcdir}/gcc && \
3712 test x"`cat ${srcdir}/gcc/DEV-PHASE`" = xexperimental; then
c100769b 3713 stage1_checking=--enable-checking=yes,types,extra
7db11a5a 3714 fi
8efea775 3715else
e643dc23 3716 stage1_checking=--enable-checking=$enable_checking,types
8efea775
PB		 3717fi])
3718AC_SUBST(stage1_checking)
3719
2805b53a 3720# Enable -Werror in bootstrap stage2 and later.
2805b53a 3721AC_ARG_ENABLE(werror,
33e39b66 3722[AS_HELP_STRING([--enable-werror],
afd88efc
ML		 3723 [enable -Werror in bootstrap stage2 and later])],
3724[
09a9c095
NN		 3725case ${enable_werror} in
3726 yes) stage2_werror_flag="--enable-werror-always" ;;
3727 *) stage2_werror_flag="" ;;
2805b53a 3728esac
afd88efc
ML		 3729],
3730[
01c712cb
ML		 3731if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
3732 case $BUILD_CONFIG in
3733 bootstrap-debug)
3734 stage2_werror_flag="--enable-werror-always" ;;
3735 "")
3736 stage2_werror_flag="--enable-werror-always" ;;
3737 esac
3738fi
afd88efc 3739])
01c712cb 3740
09a9c095 3741AC_SUBST(stage2_werror_flag)
2805b53a 3742
f2689b09
SE		 3743# Specify what files to not compare during bootstrap.
3744
3745compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"
3746case "$target" in
3747 hppa*64*-*-hpux*) ;;
4f943869 3748 powerpc*-ibm-aix*) compare_exclusions="$compare_exclusions | *libgomp*\$(objext)" ;;
f2689b09
SE		 3749esac
3750AC_SUBST(compare_exclusions)
3751
3e54529c
RW		 3752AC_CONFIG_FILES([Makefile],
3753 [sed "$extrasub_build" Makefile |
3754 sed "$extrasub_host" |
3755 sed "$extrasub_target" > mf$$
3756 mv -f mf$$ Makefile],
3757 [extrasub_build="$extrasub_build"
3758 extrasub_host="$extrasub_host"
3759 extrasub_target="$extrasub_target"])
3760AC_OUTPUT
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